Items...the very things necessary to Progress, catch and raise a Pokémon. Some of the items below are only obtainable in this game by having them attached to a Pokémon traded from Ruby/Sapphire/FireRed/LeafGreen. Here you will find a list of all the items and what they do. Shop Locations aren't counted. I will add locations for Smaller Items As Soon As Possible:

Healing Items

Picture Name Effect
Antidote Recovers from Poison
Awakening Recovers from Sleep
Berry Juice Recovers 20 HP
Blue Flute Recovers from Sleep
Burn Heal Recovers from Burn
Elixer Recovers 10 PP for all Moves
Energy Root Recovers 200 HP. Bitter
Energypowder Recovers 50 HP. Bitter
Ether Recovers 10 PP for a Move
Fresh Water Recovers 50 HP
Full Heal Recovers from any Status Ailement
Full Restore Fully Recovers HP and Status Ailments
Heal Powder Recovers Any Status Ailment. Bitter
Hyper Potion Recovers 200 HP
Ice Heal Recovers from being Frozen
Lava Cookie Recovers any Status Ailment
Lemonade Recovers 80 HP
MAX Elixer Recovers all PP for all Moves
MAX Ether Recovers all PP for a Move
MAX Potion Recovers All HP
MAX Revive Restores a Fainted Pokémon to it's Max HP
Moo Moo Milk Recovers 100 HP
Paralyz Heal Recovers from Paralysis
Potion Recovers 20 HP
Red Flute Recovers from Attraction
Revival Herb Recovers a Fainted Pokémon. Bitter
Revive Restores a Fainted Pokémon to 1/2 of it's Max HP
Sacred Ash Revives all Fainted Pokémon
Soda Pop Recovers 60 HP
Super Potion Recovers 50 HP
Yellow Flute Recovers from Confusion

Misc. Items

Picture Name Effect

Bead Mail Mail Featuring a sketch of the Pokémon Holding it

Big Mushroom A Rare Mushroom, Sells High.

Big Pearl A Big Pearl, Sells High.

Black Flute Encounter Less Wild Pokémon

Blue Shard A Shard of an Item. Trade for Blue Stone in RS

Calcium Raises a Pokémon's Special Attack

Carbos Raises a Pokémon's Speed

Dire Hit In Battle, Critical Hit Ratio is Raised

Dream Mail Mail Featuring a sketch of the Pokémon Holding it

Escape Rope Immediately Exits Caves/Dungeons and takes you back to last PC visited

Fab Mail Gorgeous Print Mail

Fire Stone Evolves Certain Pokémon

Fluffy Tail You will escape from a Wild Pokémon

Glitter Mail Mail Featuring Pikachu

Green Shard A Shard of an Item. Trade for Leaf Stone in RS

Guard Spec In Battle, Stats cannot be Lowered

Harbor Mail Mail Featuring Wingull

Heart Scale A Scale adored by collectors. Take to Move Tutor in RS

HP Up Raises a Pokémon's HP

Iron Raises a Pokémon's Defense

Leaf Stone Evolves Certain Pokémon

MAX Repel Depending on 1st Pokémon Level, No Wild Pokémon Encounters for 250 Steps

Mech Mail Mail Featuring Magnemite

Moon Stone Evolves Certain Pokémon

Nugget A Gold Nugget, Sells High.

Orange Mail Mail Featuring Zigzagoon

Pearl A Pearl, Sells Low.

Pokédoll You will escape from a Wild Pokémon

PP MAX Raises PP of a Pokémon's Move to the highest possible

PP Up Raises PP of a Pokémon's Move

Protein Raises a Pokémon's Attack

Rare Candy Raises a Pokémon's Level by 1

Red Shard A Shard of an Item. Trade for Fire Stone in RS

Repel Depending on 1st Pokémon Level, No Wild Pokémon Encounters for 100 Steps

Retro Mail Mail Featuring The 3 Starters

Shadow Mail Mail Featuring Duskull

Shoal Salt Collect 4 to help make a Shell Bell

Shoal Shell Collect 4 to help make a Shell Bell

Star Piece A Shard of a Gem, Sells Very High.

Stardust Beautiful Sand, Sells High.

Sun Stone Evolves Certain Pokémon

Super Repel Depending on 1st Pokémon Level, No Wild Pokémon Encounters for 200 Steps

Thunder Stone Evolves Certain Pokémon

TinyMushroom A Plain Mushroom, Sells Low.

Tropic Mail Mail Featuring Bellossom

Water Stone Evolves Certain Pokémon

Wave Mail Mail Featuring Wailmer

White Flute Encounter More Wild Pokémon

Wood Mail Mail Featuring Slakoth

X Accuracy In Battle, Accuracy is raised

X Attack In Battle, Attack is raised

X Defend In Battle, Defense is raised

X Special In Battle, Special Attack is raised

X Speed In Battle, Speed is raised

Yellow Shard A Shard of an Item. Trade for Thunder Stone in RS

Zinc Raises a Pokémon's Special Defense

Hold Items

Picture Name Effect
Amulet Coin Double Money is Earnt from Battles
Black Belt Any Fighting Type Move's Power is increased by 10%
BlackGlasses Any Dark Type Move's Power is increased by 10%
Blue Scarf When Attached, Raises Beauty Stat in Contests
Brightpowder Lowers Opponent's Accuracy
Charcoal Any Fire Type Move's Power is increased by 10%
Choice Band Multiplies 1st Move Power by 1.5 if Physical
Cleanse Tag Wild Pokémon Encounter Rate Lowers
DeepSeaScale Clamperl's Special Defense increases by 100%. Evolves Clamperl to Gorebyss
DeepSeaTooth Clamperl's Special Attack increases by 100%. Evolves Clamperl to Huntail
Dragon Fang Any Dragon Type Move's Power is increased by 10%
Dragon Scale A Scale held by Dragon Types. Evolves Seadra into Kingdra when traded
Everstone Stops Evolution
EXP. Share This Pokémon gets EXP from battle even if it isnt used
Focus Band May prevent fainting
Green Scarf When Attached, Raises Smart Stat in Contests
Hard Stone Any Rock Type Move's Power is increased by 10%
King's Rock May cause Opponent to Flinch. Used to evolve Poliwhirl and Slowpoke
Lax Incense Enemy's Accuracy is lowered by 5%. Attach to Female Wobbuffet and breed to get Wynaut
Leftovers HP Increases by 1/16th each turn
Light Ball Pikachu's Special Attack increases by 100%
Lucky Egg Pokémon this Item is attached to gets more EXP in battle
Lucky Punch If attached to Chansey, Critical Hit Ratio Rises
Macho Brace Lowers Speed but increases Effort Values
Magnet Any Electric Type Move's Power is increased by 10%
Mental Herb Prevents Attraction
Metal Coat Any Steel Type Move's Power is increased by 10%. Evolves Onix & Scyther when traded
Metal Powder If attached to Ditto, Ditto's Defense & Special Defense is Raised by 50%
Miracle Seed Any Grass Type Move's Power is increased by 10%
Mystic Water Any Water Type Move's Power is increased by 10%
NeverMeltIce Any Ice Type Move's Power is increased by 10%
Pink Scarf When Attached, Raises Cute Stat in Contests
Poison Barb Any Poison Type Move's Power is increased by 10%
Quick Claw The Pokémon holding this may attack first
Red Scarf When Attached, Raises Cool Stat in Contests
Scope Lens Increases Chances of a Critical Hit
Sea Incense Any Water Type Move's Power is increased by 5%. Attach to Female Marill and breed to get Azurill
Sharp Beak Any Flying Type Move's Power is increased by 10%
Shell Bell Raises HP by 1/8th of the damage inflicted onto the Opponent
Silk Scarf Any Normal Type Move's Power is increased by 10%
Silverpowder Any Bug Type Move's Power is increased by 10%
Smoke Ball You will always run from Wild Pokémon
Soft Sand Any Ground Type Move's Power is increased by 10%
Soothe Bell Happiness Level Raises Easier
Soul Dew Raises Latios' Special Defense by 50%. Raises Latias' Special Attack by 50%.
Spell Tag Any Ghost Type Move's Power is increased by 10%
Stick If attached to Farfetch'd, Critical Hit Ratio Rises
Thick Club If attached to Cubone or Marowak, their Attack rises by 100%
TwistedSpoon Any Psychic Type Move's Power is increased by 10%
Up-Grade Evolves Porygon into Porygon2 when traded
White Herb Cures any Status Condition
Yellow Scarf When Attached, Raises Tough Stat in Contests

Pokéballs

Picture Name Effect Location
Dive Ball If underwater, a 3.5 times chance of catching a Pokémon otherwise its a Normal Chance of Catching a Pokémon Mossdeep City/Abandoned Ship
Great Ball 1.5x Chance of Catching a Pokémon than using a standard Pokéball Pokémarts around Hoenn from Mauville
Luxury Ball Normal Chance of Catching a Pokémon, makes it easier for the Pokémon to like you Defeat Pokémon Contests
Masterball Always captures the Pokémon. Only 1 Aqua Hideout
Nest Ball The Lower the Pokémon's Level, the Higher chance of capture Vedanturf Town, Aqua Hideout
Net Ball Normal Chance of Catching a Pokémon unless it's a Bug or Water type in which it's a 3x normal chance Mossdeep City
Pokéball Normal Chance of Catching a Pokémon Pokémarts Everywhere
Premium Ball Normal Chance of Catching a Pokémon Buy 10 Pokéballs at once
Repeat Ball A 3 times chance of capturing Pokémon if you already have one of the same breed, otherwise it's a Normal Chance of Catching a Pokémon Rustboro Mart, Rusturf Tunnel, Route 116
Safari Ball 1.5x Chance of Catching a Pokémon. Safari Zone Only Safari Zone
Timer Ball For Every Ten Turns in battle, the chance of catching the Pokémon rises Rustboro Mart, Rusturf Tunnel, Trick House
Ultra Ball 2x Chance of Catching a Pokémon than using a standard Pokéball Pokémarts everywhere from Fortree City

Obtainable Key Items

Picture Name Effect Location
Acro Bike Travel 1.5x speed of Walking but capable of Tricks Rydel's Cycles in Mauville
Aurora Ticket Allows you to go to Island 9 - Birth Island Mystery Gift at Nintendo Event
Basement Key Allows Entry to New Mauville Mauville City
Claw Fossil Resurrects into Anorith Illusion Pillar or Desert Underground Tunnel
Coin Case Holds Game Corner Coins Mauville City
Contest Pass Allows Entry in Contests Lilycove City Contest Hall
Devon Goods The Stolen Devon Goods Rusturf Tunnel
Devon Scope Allows you to See Invisible Pokémon Route 121
Eon Ticket Allows Travel to Southern Island Mix Records with Ruby/Sapphire which has a legitimite Eon Ticket
Go-Goggles Allows for you to see in a Sandstorm Lavaridge Town
Good Rod Hooks Water Pokémon Route 118
Itemfinder Finds Hidden Items Route 110
Letter Letter from Mr. Stone to Steven Devon Corporation
Mach Bike Travel at 2x Speed of Normla BIke Rydel's Cycles in Mauville City
Magma Symbol A Symbol of Team Magma that allows access to the Magma Hideout Mt. Pyre
Meteorite Contains Cosmic Energy - Trade for Moonstone on Island 2 Mt. Chimney
MysticTicket Allows you to go to Island 8 - Navel Cavern Mystery Gift at Nintendo Event
Old Rod Hooks Water Pokémon Dewford Town
Old Sea Chart A Chart to take you to World's Edge Island Mystery Gift At Nintendo Event
Pokéblock Case Stores Pokéblocks Lilycove City Contest Hall
Powder Jar Allows you to Crush Berries Petalburg City
Room 1 Key Opens Room 1 on Abandoned Ship Abandoned Ship
Room 2 Key Opens Room 2 on Abandoned Ship Abandoned Ship
Room 4 Key Opens Room 4 on Abandoned Ship Abandoned Ship
Room 6 Key Opens Room 6 on Abandoned Ship Abandoned Ship
Root Fossil Resurrects into Lileep Illusion Pillar or Desert Underground Tunnel
Scanner A Vital Scanner left on the Abandoned Ship Abandoned Ship
Soot Sack Collects Soot to use for Items Route 113
S.S. Ticket Allows You To Board the S.S. Anne to Lilycove, Slateport & Battle Frontier Your House After Defeating Elite 4
Storage Key Opens Storage Room on Abandoned Ship Abandoned Ship
Super Rod Hooks Water Pokémon Mossdeep City
Wailmer Pail Waters Berries Route 104 - Flower Shop

Un-Obtainable Key Items

Picture Name Effect
Berry Pouch Oraganises and holds your Berries
Bike Allows for Fast Travel
Bike Voucher Trade for a Bike
Blue Orb Contains Ancient Energy
Card Key Unlocks Doors in Silph. Co.
Dome Fossil Ressurrects into Kabuto
Elevator Key Powers the Elevator
Fame Checker Keeps Track of Trainers and signs
Gold Teeth The Warden's Gold Teeth
Helix Fossil Ressurrects into Omanyte
Oak's Parcel Parcel To Give To Oak
Old Amber Ressurrects into Aerodactyl
Pokéflute Wakes Sleeping Pokémon
Rainbow Pass Allows You to go to Rainbow Islands 4, 5, 6 & 7
Red Orb Contains Ancient Energy
Ruby Powers Network Machine
Sapphire Powers Network Machine
Secret Key Unlock's Cinnibar Gym
Silph Scope Allows you to see Ghost Pokémon
Tea Allows you to go into Saffron
Teachy TV Teaches you how to play the game
TM Case Oraganises and holds your TMs
Town Map Allows you to view Kanto & Rainbow Islands
Tri Pass Allows You to go to Rainbow Islands 1, 2 & 3 whenever you want
VS. Seeker Sees if Trainers want to re-match