Air Balloon - When held by a specific Pokémon, it will cause the holder to float and be immune to Ground type attacks and grounded hazards. When attacked, the balloon will pop. Permanent item, does not get consumed. Battle Queue Prize
1 star
Useful for pokemon with double weakness to ground or revenge killing within steel trappers strategy.
Notable example: magnezone

Assault Vest  - Raises your Sp.Def by 1.5x, but the holder can only use damaging moves. Clan War Prizes
2 stars
For slow bulky attackers, special tanks and pokemon designed to check certain threats that are special attackers.
Notable examples: Conkeldurr, pursuit pawniard in stall teams

Big Root  - Increases HP gained from draining moves by 30%. Item Bomb prize
0 star
For stall pokemon that have a draining moves like subseed strategy or ingrain setup, usually leftovers are preferred
Notable examples: Venusaur

Binding Band - Increases power of multi-turn trapping moves from 1/8 maximum HP to 1/6 HP. From the Clan War Shop
0 star
For stall pokemon that have trapping moves and toxic, taunt makes that strategy absolutely useless most of the time
Notable examples: Shuckle

Black Belt and others type enhancing item - Boosts the power of the holder’s  type moves by 20%. From the Battle Queue prize shop
0-1 star
For frail setup pokemon with move or ability needing special conditions
Notable examples: Honchkrow

Black Sludge  - A held item that gradually restores the HP of Poison- type pokemon. When held by any other type, it inflicts damage.
2 stars
Aka leftovers but for poison types, preferred for poison types as it will hurt possible choice trick.
Notable examples: amoonguss, support gengar

Bright Powder  - Raises evasion by 10%. Altering Cave drop
0 star for evasion setup pokemon (Anything Goes only), usually leftovers is preferred
Notable example: minimize clefable

Choice Band  - Raises the holder’s attack by 50% but locks into one move. From the PP shop or Master shop
2 stars
For physical wallbreakers, even better with a strong priority move available
Notable examples: weavile, scizor

Choice Scarf - Raises the holder’s speed by 50% but locks into one move. From the PP shop or Master shop
3 stars
For fast offensive pokemon without priority moves (70+speed), to check certain faster threats, for revenge killers or for support with trick strategy
Notable examples: magnezone, ditto, trick rotom-wash

Choice Specs  - Raises the holder’s special attack by 50% but locks into one move. From the PP shop or Master shop see
2 stars
For special wallbreakers that can kill chansey
Notable examples: keldeo, alakazam

Deep Sea Scale - If held by Clamperl, doubles its Special Attack. Evolves Clamperl into Gorebyss. Dropped by wild Clamperl.
1 star
For LC clamperl only
Notable examples: clamperl

Deep Sea Tooth  - If held by Clamperl, doubles its Special Defense. Evolves Clamperl into Huntail. Dropped by wild Clamperl.
0 star
For LC clamperl only but Deep Sea Scale is preferred
Notable examples: clamperl

Expert Belt - Raises power of super effective attacks by 20%. From the Casino shop
1 star
For pokemon with large moveset typing that are planned to stay long in the fight.
Notable example: Tentacruel

Flame Orb  - Grants the “Burned” status upon the holder. From PvP Shop or Battle Tower Shop
1 star
For Guts/quickfeet pokemon or unaffected support pokemon.
Notable example: Sigilyph

Focus Band - This item gives the Pokémon a 10% chance of preventing a KO and keeping the holder at 1HP. Item Bomb prize
0 star
No use found yet

Focus Sash (Permanent)  - Same effect as the normal Focus Sash, but it doesn’t get consumed after use. Note: This does not work in NPC battles. From the Casino Prize shop
2 stars
For suicide lead, very frail offensive pokemon or those not damaged by hazard entry (magic guard)
Notable example: Smeargle, Alakazam

Heat Rock - Extends Sun weather to 8 turns instead of 5. From the PvP shop see “Prizes” for more info
1 star
For defensive sun setters
Notable example: Torkoal

Icy Rock - Extends Hail weather to 8 turns instead of 5. From the PvP Shop see “Prizes” for more info
0 star
For defensive hail setters, but since ice is the worst defensive typing it doesn’t really exists
Notable example: Vanilluxe

Kings Rock  - An item to be held by a Pokemon. When the holder inflicts damage, the target may flinch. It’s also used to evolve Poliwhirl into Politoed and Slowpoke into Slowking. Drops from respective evos
1 star
For pokemon with multi-strike moves and poor coverage
Notable Example: Cloyster

Lagging Tail  - Makes the holder move last. Altering Cave drop
0 star
For Prankster trick
Notable Example: Sableye

Leftovers -  An item to be held by a pokemon. The holder’s HP is restored 1/16th of its max health per turn during battle. Dropped by wild Snorlax/Munchlax. Also in the Clan wars prize shop
3 stars
Slap it on anything: stall pokemon, defensive pokemon, setup pokemon, subseed pokemon, bulky offensive pokemon, support pokemon, pivot pokemon, hazard control pokemon,...
Notable Exemple: Gyarados, Scizor, Ferrothorn

Life Orb - Increases the power of moves by 30% but loses HP each turn.
2 star
For pokemon taking minimal recoil (sheer force, magic guard, total hp under 19), mixed pokemon or frail pokemon with great coverage.
Notable Example: Nidoking, Latios

Light Ball - Doubles Pikachu’s offensive stats when held. Dropped by wild Pikachu.
0 star
For physical or mixed Pikachu that are the only builds that wallbreak harder than Raichu. But Raichu isn’t a wallbreaker anyway.
Notable Example: Pikachu

Light Clay  - Makes Reflect, Light Screen and Aurora Veil last 8 turns instead of 5. From the Battle Queue Shop
1 star
For dual screen pokemon (Light Screen+Reflect)
Notable Example: Cresselia

Lucky Punch  - Increases critical-hit ratio when held by Chansey. Dropped by wild Chansey.
0 star
For Chansey but with 35 special attack it’s just unuseable
Notable example: Chansey

Macho Brace  - Doubles EV gains, but halves speed when held. From the Casino prize shop see “Prizes” for more info
1 star
For pokemon with ability or moves needing it to be slow (replacing iron ball)
Notable Example: Aegislash

Metal Powder - Doubles Ditto’s defense when equipped. Dropped by wild Ditto.
0 star
For Ditto but only when it’s in Ditto form so Imposter makes the item completely useless
Notable example: Ditto

Metronome  - Increases the power of a move when used consecutively. From the Clan War Shop
1 star
For pokemon with 1 strong coverage or wallbreaking move that can still need to switch move sometimes.
Notable Example: Kyurem

Muscle Band  - Increases the holder’s attack by 10%. Drop from Ancient Dungeon
0 star
No use found yet

Power Herb - Held item that makes two turn moves activate in one turn once. From the Battle Tower prize shop
1 star
For pokemon for pokemon with a long setup move for boosting or coverage.
Notable Example: Xerneas

Quick Claw  - An item to be held by a Pokemon. A light, sharp claw that lets the bearer move first occasionally.
0 star
For sturdy pokemon with strong attack but poor coverage and without strong priority move.
Notable Example: Sawk

Quick Powder - Increases Speed when held by Ditto. Dropped by wild Ditto.
0 star
For Ditto but only when it’s in Ditto form so Imposter makes the item completely useless
Notable example: Ditto

Razor Claw - Raises critical hit rate by one stage. Can also be used to evolve Sneasel into Weavile. Dropped by wild Sneasel.
1 star
For sniper pokemon.
Notable example: Kingdra

Razor Fang  - Gives moves a secondary effect to flinch if they don’t have already. Also used to evolve Gligar into Gliscor. Dropped by wild Gligar.
see king’s rock

Red Card - When the holder is struck by a foe, the attacker is removed from battle. Obtained via Battle Queue shop see “Prizes” for more info
1 star
For Defensive suicide hazard setting pokemon.
Notable example: Uxie

Rocky Helmet - Damages the foe for 1/6 of max HP when its attack makes contact. Altering Cave drop
2 stars
For Physically defensive pokemon with regen.
Notable Exemple: Slowbro, Tangrowth

Scope Lense  - Increases critical-hit ratio by one stage. Obtained via Casino shop
see Razor Claw

Shed Shell - A tough, discarded carapace to be held by a pokemon. It enables the holder to switch with a waiting Pokemon in battle, despite trapping abilities such as Arena Trap and Magnet Pull. Dropped by any Pokemon in any of the Mossy Cave rooms.
1 star
For pokemon that are commonly trapped and revenge killed.
Notable example: Skarmory

Shell Bell - Heals the holder for ⅛ of the damage it inflicts. Altering Cave drop
0 star
For strong offensive pokemon used by defensive switching it in.
Notable example: Espeon

Smooth Rock - Extends Sand weather to 8 turns from 5. From the PvP Shop see “Prizes” for more info

Stick - If held by a Farfetch'd, increases its critical hit ratio by two stages. Comes with the caught Farfetch’d
0 star
For farfetch’d, might become useful now that farfetch’d is an LC pokemon?
Notable example: Farfetch’d

Thick Club - Doubles Cubone/Marowak’s Attack when held. Dropped by wild Cubone/Marowak.
1 star
For Cubone/Marowak
Notable example: Cubone

Toxic Orb  - Grants the holder the “Badly Poisoned“ status. From the PvP or Battle Tower shops
1 star
For pokemon with poison heal or toxic boost (or guts/quick feet that pivot fast).
Notable example: Gliscor

Weakness Policy  - Attack and Special Attack sharply increase when hit super effectively. Single use per battle. From the PvP Shop
1 star
For bulky pokemon without regenerative moves/ability that are planned to stay long in the fight.
Notable example: Dragonite

White Herb - Removes stat decreases. One-time use per battle. From the PvP Shop see “Prizes” for more info
1 star
For pokemon with boosting moves decreasing stats
Notable example: Omastar

Wide Lens -  Raises accuracy by 10%. From the Clan War Shop see “Prizes” for more info
0 star
For pokemon with a poor precision setup and moves.
Notable example: Darkrai

Wise Glasses -  Raises damage from special moves by 10%. Drop from Dungeon
0 star no use found yet