The power of Fling ranges from 10-130.
10:
Berries
Incenses
Scarves
Air Balloon
Big Root
Bright Powder
Zoom Lens
Choice Specs
Choice Band
Choice Scarf
Destiny Knot
Lagging Tail
Expert Belt
Focus Band
Focus Sash
Leftovers
Mental Herb
Metal Powder
Muscle Band
Power Herb
Quick Powder
Reaper Cloth
Red Card
Ring Target
Shed Shell
Silk Scarf
Silver Powder
Smooth Rock
Soft Sand
Soothe Bell
White Herb
Wide Lens
Wide Glasses
20:
Wings
30:
Potions
Herbal Medicine
Revives
Drinks
Medicines
Ethers & Elixers
Repels
Vitamins
Shards
Mulches
Battle Items
Flutes
Absorb Bulb
Amulet Coin
Mushrooms
Nuggets
Pearls
Black Belt
Binding Band
Black Glasses
Black Sludge
Cell Batteries
Charcoal
Cleanse Tag
Casteliacone
Comet Shard
Deep Sea Scale
Dragon Scale
Eject Button
Escape Rope
Everstone
Exp. Share
Flame Orb
Fire Stone
Fluffy Tail
Float Stone
Honey
Lava Cookie
King's Rock
Leaf Stone
Light Ball
Life Orb
Lucky Egg
Light Clay
Magnet
Metal Coat
Miracle Seed
Moon Stone
Metronome
Never Melt Ice
Mystic Water
Old Gateau
Pass Orb
Pearl String
Poke Doll
Poke Toy
Razor Fang
Prism Scale
Relic Items
Sacred Ash
Scope Lens
Shoal Items
Shell Bell
Smoke Ball
Soul Dew
Spell Tag
Star Piece
Stardust
Sun Stone
Sweet Heart
Thunder Stone
Twisted Spoon
Toxic Orb
Up-Grade
Water Stone
40:
Evolite
Icy Rock
Lucky Punch
50:
Dubious Disc
Sharp Beak
60:
Adamant Orb
Lustrous Orb
Griseous Orb
Damp Rock
Heat Rock
Macho Brace
Stick
Rocky Helmet
70:
Genesect Drives
Power Anklet
Power Band
Power Bracer
Power Lens
Power Weight
Dragon fang
Poison Barb
80:
Dawn Stone
Dusk Stone
Odd Keystone
Magmarizer
Electrizer
Oval Stone
Protector
Quick Claw
Razor Claw
Shiny Stone
Sticky Barb
90:
Arceus Plates
Deep Sea Tooth
Grip Claw
Thick Club
100:
Fossils
Hard Stone
Rare Bone
120:
None
130:
Iron Ball
There are also some items that do damage and have a special effect.
Flame Orb: Burns the target
Razor Fang: Causes the target to flinch
Toxic Orb: Badly Poisons the target
Light Ball: Paralyzes the target
Mental Herb: Cures infatuation from the target
Poison Barb: Poisons the target
King's Rock: Causes the target to flinch
White Herb: Restores lowered stats of the target
Hope I helped!
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