In this guide, I will basically explain what every item in Pixelmon item does/it's effect.
The guide is also displayed in categories Enjoy!


Machines

PC: a Pokèmon PC which has 32 boxes for your pokèmons.

Healer: A healer for your pokemon, Heals all pokemon in your party to full HP (Hitpoints)

Anvil (Pixelmon) An anvil which lets you hammer Pokeball discs and lids.

Fossil cleaner: A Fossil machine is a machine used to extract the DNA from cleaned fossils.

Fossil Cleaner: Fossil cleaner lets you clean the fossil so you can put it into a fossil machine.

Trade Machine: Trading machines can be used to trade your pokemon with another trainers pokemon.

Green/Orange/Cloner Tank/cord: Parts of a Cloning machine.

Cloning machine: Lets you clone the Pokèmon Mew 3 times by putting in Iron/Gold/Diamond blocks(3 Iron blocks: give 1 value, Gold blocks give 3 value and Diamond blocks give 5 value.)

Ranch block: Lets you breed 2 Pokemon with each other if pokemon are same egg group. (Legends cannot breed)

Elevator: Place an elevator over an elevator (max 9 blocks above) and stand in the middle of it and teleport up to the other elevator block.

Mechanical Anvil: Mechanical Anvils melts Pokeball lids & pokeball discs for you instead of using an Anvil and hammering them by hand.

Movement plate: A movement plate is a block that will quickly move any entity (player, mob, item, etc.) in the direction that the plate is facing. It can be obtained via crafting. It requires a pickaxe to be retrieved after being placed. (some of the Pixelmon servers don't have this recipe enabled.)

Stick Plate: A stick plate is a block that slows down players and other entities that walk over it, similar to soul sand (although players can still jump) (some Pixelmon servers might not have this item as a recipe)

Timed Fall: A timed fall is a block that blocks a player from passing (from any direction) for three seconds, then removes its hitbox for a short amount of time afterwards for the player to pass through. it can be crafted. (Some of the Pixelmon servers might not have this item as a recipe)

Vending Machine: Vending machines are machines that you can use Pokèdollars (some of the Pixelmon servers might not have this feature) to buy Battle/Healing items for your pokemon.


Tools & Armor

Item finder: An Itemfinder is an item that is used to locate hidden PokéLoot chests. When used (right-clicked while in hand), it will show the direction of the nearest hidden PokéLoot chest if there is one within range. The maximum distance that can be detected is 35 blocks away. It will only detect hidden chests; visible chests will not be detected.

Old rod: The Old Rod is the most basic fishing rod in Pixelmon. It is crafted like a vanilla fishing rod, but with a Poké Ball at the end.

Camera: Used to take a photo of Pixelmon. (Film is needed, It takes 1 Film away from you for 1 picture of a Pixelmon)

Film: Film is used with the camera to get the picture of the Pixelmon you're looking at.

Wailmer pail: The Wailmer Pail is used for advancing the growth of Apricorn trees by a stage. An Apricorn tree can only be watered once per Minecraft day, resetting around dawn.

Old running boots: Gives a 50% speed boost if worn by a player.

New running boots: Gives a 75% speed boost if worn by a player.

Pokegift: a box which you can put a pokemon item in and if player right-clicks it, it will give the player the item inside.

Hammers: Hammers let you hammer Pokeball lids & discs on an anvil.

Orbs of fiery/frozen/static souls: Fill this orb up and put it in a shrine and a Legendary bird will spawn depending on which orb & shrine you use.

Meteorite: A Meteorite is an item that can change a Deoxy's form when used on Deoxy's. It can only be used on a Deoxys owned by the player using the Meteorite.

Pokeball: Pokeballs can be created if you cook apricorns and combine the right colors and hammer the Pokeball lids & discs and put the finished lids & discs in a crafting table.


Medicine

Potion: A healing item that can be used to heal 1 pokemon by 20HP, it can be used by right-clicking the pokemon. or it can be used in battle.

Super potion: A healing item that can be used to heal 1 pokemon by 50HP, it can be used by right-clicking the pokemon. or it can be used in battle.

Hyper potion: A healing item that can be used to heal 1 pokemon by 200HP, it can be used by right-clicking the pokemon. or it can be used in battle.

Max potion: A healing item that can be used to heal 1 pokemon till it's maximum HP, It can be used by right-clicking the pokemon. or it can be used in battle.

Full restore: A healing potion that can be used to heal 1 pokemon to maximum HP and eliminate it's status effects, can be used by right-clicking the pokemon. or it can be used in battle.

Energy Powder: Energy Powder is a type of Medicine that restores 50 HP on a Pokémon like a Super Potion does. However, using it lowers the Pokémon's happiness by either 5 or 10 depending on how much happiness it initially has.

Energy Root: An Energy Root is a type of Medicine that heals 200 HP on a Pokémon like a Hyper Potion does. However, using it lowers the Pokémon's happiness by either 10 or 15 depending on how much happiness it initially has.

Fresh Water: Fresh Water is a type of medicine that heals 50 HP when used on a Pokémon

Soda Pop: Soda Pop is a type of medicine that heals 60 HP when used on a Pokémon.

Lemonade: Lemonade is a type of medicine that heals 80 HP when used on a Pokémon.

Moomoo Milk: Moomoo Milk is a type of medicine that heals 100 HP when used on a Pokémon.

Antidote: An Antidote is a type of medicine used to heal Pokémon from the poisoned and badly poisoned statuses.

Awakening: An Awakening is a type of medicine used to remove the sleep status from a Pokémon.

Burn Heal: A Burn Heal is a type of medicine used to heal the burn status of a Pokémon.

Ice Heal: An Ice Heal is a type of medicine used to heal Pokémon from the frozen status.

Paralyze Heal: A Paralyze Heal is a type of medicine used to heal a Pokémon from the paralyzed status.

Full Heal: A Full Heal is a type of medicine used to remove all status ailments from a Pokémon. This includes sleep, paralysis, poison, burn, freeze, and confusion.

Heal Powder: Heal Powder is a type of medicine that heals all status on a Pokémon like a Full Heal. However, it also lowers the Pokémon's happiness by either 5 or 10 depending on how much happiness it initially has.

Ether: An Ether is a type of medicine used to restore 10 PP to one of a Pokémon's moves.

Max Ether: A Max Ether is a type of medicine used to fully restore the PP of one of a Pokémon's moves

Elixir: An Elixir is used to restore 10 PP to all of a Pokémon's moves.

Max Elixir: A Max Elixir is a type of medicine used to fully restore the PP of all of a Pokémon's moves.

Revive: A Revive is a type of medicine that can restore half of a fainted Pokémon's HP.

Max Revive: A Max Revive is a type of medicine that can fully restore a fainted Pokémon's HP.

Rare Candy: Levels up Pokemon the Candy is given to by 1 level, hold in your hand and right-click on the pokemon you wanna give it to.

Evolutionary Items
Fire, Water, Leaf, Thunder, Moon, Sun, Dusk & Shiny stones are stones that can be used to evolve certain Pokemon.

Dubious Disc: A Dubious Disc is an item that evolves Porygon2 into Porygon-Z if held by Porygon2 while it is being traded.

Electirizer: An Electirizer is a held item that can be held by Electabuzz in order for it to evolve into Electivire when traded.

Everstone: An Everstone is a held item that can be given to a Pokémon to prevent it from evolving. When held by a breeding Pokémon, its Nature is guaranteed to be passed on to its offspring.

King's Rock: A King's Rock is a held item that causes the holder's damaging attacks to have a 10% chance of causing the opponent to flinch. This effect does not stack with moves that already have a chance to flinch. A King's Rock can also evolve Poliwhirl into Politoed and Slowpoke into Slowking if held while being traded. The King's Rock will be consumed in the process.

Magmarizer: A Magmarizer can be held by Magmar so that it evolves into Magmortar when traded. It is consumed once the evolution occurs.

Metal Coat: A Metal Coat is a held item that boosts the power of Steel-type moves by 1.2×. If Scyther or Onix hold a Metal Coat while being traded, they will evolve into Scizor and Steelix (respectively) and the Metal Coat will be consumed.

Protector: A Protector is a held item that is needed to evolve Rhydon into Rhyperior. If Rhydon holds a Protector while being traded, the Protector will be used up and Rhydon will evolve.

Up-Grade: An Up-Grade is a held item that will evolve Porygon into Porygon2 if Porygon holds it while being traded.


Held Items

Air balloon: An Air Balloon is a held item that makes the holder immune to Ground-type moves, announcing as such when the holder enters battle. However, if the holder takes direct damage from a move, the balloon will pop and its effects will disappear.

Amulet Coin: An Amulet Coin is a held item that doubles the amount of PokéDollars that are gained after defeating an NPC Trainer. It will only take effect if the Amulet Coin's holder enters the battle. It can be crafted, and can also be obtained as a tier 2 special drop. (Some of the Pixelmon servers might not use Pokedollars.)

Assault Vest: An Assault Vest is a held item that raises the holder's Special Defense by 50%, but prevents the holder from using status moves. If this restriction renders the holder unable to use any of its moves, the holder will use Struggle instead.

Berry Juice: Berry Juice is a held item that heals 20 HP when the holder's HP falls below 50%.

Binding Band: A Binding Band is a held item that increases the residual damage from partially trapping moves (Bind, Clamp, Fire Spin, Infestation, Sand Tomb, Whirlpool, Wrap) from 1/16 to 1/8.

Black Belt: A Black Belt is a held item that increases the power of the holder's Fighting-type moves by 20%.

Black Glasses: Black Glasses is a held item that increases the power of the holder's Dark-type moves by 20%.

Black Sludge: A Black Sludge is a held item that heals Poison-type Pokémon by 1/16 of its maximum HP. If the holder is not a Poison type they will lose 1/16 of their HP each round.

Bright Powder: A Bright Powder is a held item that increases the holder's evasion by 10%.

Cell Battery: A Cell Battery is a held item that boosts the holder's Attack by one stage if hit by an Electric-type move, and is consumed once this happens. It does not grant the holder an immunity to Electric-type attacks.

Charcoal: A Charcoal is a held item that increases the power of the holder's Fire-type moves by 20%.

Damp Rock: A Damp Rock is a held item that increases the duration of Rain Dance and Drizzle to eight turns.

Destiny Knot: A Destiny Knot is a held item. If the holder of the Destiny Knot is afflicted with the infatuated status by an opponent, the opponent will also become infatuated. If a Pokémon holds a Destiny Knot while breeding, five of the parents' IVs will be passed to their offspring instead of three.

Eject Button: An Eject Button is a held item that causes the holder to switch out if it takes direct damage. It is consumed once this happens. The holder's Trainer is able to choose which Pokémon to send out next. An Eject Button has no effect if the there are no other Pokémon to switch into.

EXP. Share: An Exp. Share is a held item that awards experience to the holder even if it does not participate in the battle, as long as the holder has not or is not fainted and in the player's party. If the Pokémon does not participate in the battle, it will gain 50% of the normal experience and the full amount of EVs from the defeated Pokémon.

Expert Belt: An Expert Belt is a held item that boosts the power of moves that hit the opponent super effectively by an additional 1.2×.

Flame Orb: A Flame Orb is a held item that burns the holder at the end of a turn if the holder is in battle

Float Stone: A Float Stone is a held item that halves the holder's weight.

Focus Band: A Focus Band is a held item that has a 10% chance of causing an otherwise fatal attack (either direct damage or recoil damage) to leave the holder with 1 HP remaining. It does not prevent self-KO moves such as Explosion, Healing Wish, Memento, and Selfdestruct from causing the user to faint.

Focus Sash: A Focus Sash is a held item that allows the holder to survive an otherwise fatal attack with 1 HP remaining if it was at full health prior to the attack, being consumed upon use. It does not protect the user from fainting from its own Explosion, Healing Wish, Memento, or Selfdestruct.

Grip Claw: A Grip Claw is a held item that extends the duration of partially trapping moves to seven turns.

Hard Stone: A Hard Stone is a held item that increases the power of the holder's Rock-type moves by 20%.

Heat Rock: A Heat Rock is a held item that increases the duration of Sunny Day and Drought to eight turns.

Icy Rock: An Icy Rock is a held item that increases the duration of Hail to eight turns.

Iron Ball: An Iron Ball is a held item that halves the holder's Speed and cancels out any immunities to Ground-type attacks.

Lagging Tail: A Lagging Tail is a held item that causes the holder to move last within moves of the same priority.

Leftovers is a held item that restores 1/16 of the holder's HP every turn.

Life Orb: A Life Orb is a held item that boosts the holder's damaging attacks by 30%, but causes the holder to take 10% of its maximum HP in recoil with each damaging attack it uses.

Light Clay: Light Clay is a held item that extends the duration of Reflect and Light Screen to eight turns.

Macho Brace: A Macho Brace is a held item can be given to a Pokémon to double its EV gain from defeating other Pokémon. However, the holder's Speed will be halved while holding the brace.

Magnet: A Magnet is a held item that raises the power of the holder's Electric-type moves by 1.2×.

Metronome: A Metronome is a held item that increases the power of moves that are used consecutively. Every consecutive turn that the move is used after the first time, its power will increase by 20% up to a maximum increase of 100%. This multiplier will be reset if the Pokémon uses a different move or switches out.

Miracle Seed: A Miracle Seed is a held item that increases the power of the holder's Grass-type moves by 20%.

Muscle Band: A Muscle Band is a held item that raises the power of the holder's physical moves by 10%.

Mystic Water: A Mystic Water is a held item that increases the power of the holder's Water-type moves by 20%.

Never-Melt ice: A Never-Melt Ice is a held item that increases the power of the holder's Ice-type moves by 20%.

Red Card: A Red Card is a one-use held item that forces the opponent to switch out if it directly attacks the holder. It will not function if there are no Pokémon on the opponent's side for the opponent to switch into.

Ring Target: A Ring Target is a held item that negates type immunities on the holder. It does not affect immunities caused by Abilities or other held items.

Rocky Helmet: A Rocky Helmet is a held item that causes a Pokémon that makes contact with the holder to take ? of its maximum HP in damage.

Safety Goggles: Safety Goggles are a type of held item that prevents the holder from being damaged by Hail and Sandstorm, and from being affected by Effect Spore and the following powder-based moves:

Cotton Spore
Poison Powder
Rage Powder
Sleep Powder
Spore
Stun Spore


Scope Lens: A Scope Lens is a held item that increases the holder's critical hit ratio by one stage.

Shell Bell: A Shell Bell is a held item that restores 1/8 of any direct damage dealt by the holder to the holder's HP.

Silk Scarf: Silk Scarf is a held item that increases the power of the holder's Normal-type moves by 20%.

Smoke Ball: A Smoke Ball is a held item that allows the holder to always be able to escape from wild Pokémon.

Smooth Rock: A Smooth Rock is a held item that increases the duration of Sandstorm and Sand Stream to eight turns.

Snowball: A Snowball is a held item that raises the holder's Attack by one stage when hit by an Ice-type move.

Soft Sand: Soft Sand is a held item that increases the power of the holder's Ground-type moves by 20%.

Soothe Bell: A Soothe Bell is a held item that increases the amount of happiness gained by one for every action that normally raises happiness. Its effects stack with the effects of a Luxury Ball.

Spell Tag: Spell Tag is a held item that increases the power of the holder's Ghost-type moves by 20%.

Sticky Barb: A Sticky Barb is a held item that damages the holder by 1/8 of its maximum HP each turn. If another Pokémon makes contact with the holder and does not have a held item, the Sticky Barb will be transferred from the holder to the attacker.

Toxic Orb: A Toxic Orb is a held item that badly poisons (like Toxic) the holder at the end of a turn if the holder is in battle.

Twisted Spoon: A Twisted Spoon is a held item that increases the power of the holder's Psychic-type moves by 20%.

Weakness Policy: A Weakness Policy is a held item that raises the holder's Attack and Special Attack by two stages when hit by a super effective move. The Weakness Policy is consumed when this occurs.

Wide Lens: A Wide Lens is a held item that increases the accuracy of the holder's moves by 10%.

Wise Glasses: Wise Glasses are a type of held item that raises the holder's Special Attack by 10%.

Zoom Lens: A Zoom Lens is a held item that increases the accuracy of the holder's moves by 20% if it moves after its target.

Full Incense: A Full Incense is a type of incense that causes the Pokémon holding it to move last in battle. This will not occur if the opponent uses a move of lower priority than the user's move. If a Full Incense is held by a Snorlax that is breeding, the resulting Egg will contain a Munchlax instead of another Snorlax.

Lax Incense: A Lax Incense is a held item that increases the holder's evasion by 10%. If held by a Wobbuffet that is breeding, the resulting Egg will hatch into a Wynaut instead of another Wobbuffet.

Odd Incense: An Odd Incense is a held item that increases the power of the holder's Psychic-type moves by 20%. An Odd Incense can also be held by a Mr.Mime that is breeding in order to produce a Mime Jr. Egg; otherwise, a Mr.Mime Egg will be produced instead.

Pure Incense: Pure Incense is a held item that can be held by a Chimecho to produce a Chingling Egg when breeding; without a Pure Incense, a Chimecho Egg will be produced instead.

Rock Incense: A Rock Incense is a held item that boosts the power of the holder's Rock-type moves by 20%. It can also be held by a Sudowoodo that is breeding in order to produce a Bonsly Egg; otherwise, a Sudowoodo Egg will be produced instead.

Rose Incense: A Rose Incense is a held item that increases the power of the holder's Grass-type moves by 20%. It can also be held by a Roselia or a Roserade to obtain a Budew Egg when breeding; without a Rose Incense, a Roselia Egg will be created instead.

Sea incense: A Sea Incense is a type of incense that can be held by a Pokémon to raise the power of the holder's Water-type moves by 20%. It also must be held by a breeding Marill or Azumarill to produce an Azurill Egg; otherwise, the Egg will hatch into a Marill.

Wave Incense: A Wave Incense is a held item that raises the power of the holder's Water-type moves by 20%. If a Mantine holds a Wave Incense while it breeds, it will produce a Mantyke Egg.

Gems: Gems are held items that boost the power of a move of their corresponding type by 1.5×, being consumed in the process. They are crafted with six diamonds and an item related to the Gem's type.

Pixie Plate: Pixie Plate is a held item that raises the power of the holder's Fairy-type moves by 20%.

Thanks for reading my guide! If there's any grammar wrong or outdated facts please message directly on the forums, other than that Hope it helped you! Cheers