With that, Slate 2 is completed (barring any coding issues)!
If you have an idea of what your item's sprite should be, let me know in the discord!
Type A
Normalium Z (from Yoshiblaze): If holder has a Normal move, this item allows it to use a Normal Z-Move.
Pinsirite (from Orangesodapop): If held by a Pinsir, this item allows it to Mega Evolve in battle.
Venusaurite (from ErrorMon): If held by a Venusaur, this item allows it to Mega Evolve in battle.
Type B
Big Root (from Cyaneedle): Holder gains 1.5x HP from draining/Aqua Ring/Ingrain/Leech Seed/Strength Sap.
Eviolite (from bro torterra): Holder has 1.5x Def/SpD and 1.3x Atk/SpA per possible evolution. (ie Pokemon that evolve twice gain 2.25x and 1.69x)
Type C
[TBD]
Baseball Glove (from anaconja): On switchin, blocks one attack from the opponent and lowers their Atk/SpA if an attack was blocked. Single use.
Bicycle (from Fragmented): After attacking, swaps held items with the target.
[TBD]
Bizarre Vest (from Samtendo09): Holder moves last in its priority bracket. If holder's Atk/SpA > Def/SpD, the user's Def/SpD will equal its Atk/SpA.
[TBD]
Golden Belt (from DuoM2): If the user is at full HP, they are immune to incoming status moves.
Heavy Net (from Rasdanation): Halves the holder's Speed. If the holder is targeted with a move that has a pivoting effect, this item reveals itself and will block that pivoting effect.
Mining Helmet (from Squawkerz): If holder is hit by a Dark-type or Rock-type move, the attacker loses 1/6 of its max HP.
[TBD]
Mirror Shroud (from War Incarnate): If the holder is hit by a Special move, reflects 33% of the damage back to the attacker.
[TBD]
Paladin Shield (from PalpitoadChamp): This Pokemon is immune to stat drops and secondary effects.
[TBD]
Pineapple Pizza (from Beebos): Holder consumes this item at 1/2 max HP or lower: If the holder has a neutral nature, restore 1/2 max HP and any nonvolatile status condition, otherwise Confuse the holder.
[TBD]
Rain Jacket (from Jumpheart): Extends user's set Rain by 1 turn. 1.5x SpDef in Rain.
[TBD]
Shard of True Ice (from Taliyeet): If the holder is an Ice type with <600 BST: User resists Dragon/Steel/Fighting and Stealth Rock, but is weak to Dark/Psychic/Poison.
[TBD]
Tera Amulet (from Gaboswampert): Reduces the damage of the type this Pokemon can Terastalize into by 0.4. Announces itself on switch-in as well as the type it reduces damage from.
Please discuss these items in the thread or in the discord. I have 1 (possibly 2) more slates planned, date TBD.
Happy Trading!