Additional effect

An additional effect (Japanese: 追加効果 additional effect) is the in-battle secondary effect of a damaging move.

Additional effects include stat changes or status conditions with a chance of occurring. Some moves can also have more than one additional effect; Ice Fang is an example of this, with a 10% chance of freezing the target and an independent 10% chance of causing the target to flinch.

The effects of Anchor Shot, Eerie Spell, Genesis Supernova, Secret Power, Sparkling Aria, and Spirit Shackle are explicitly enumerated as being additional effects, though they would not otherwise be counted as such if not for this exception. Notably, Thousand Waves, which otherwise has an identical effect to Anchor Shot and Spirit Shackle, is not considered to have an additional effect.

There are three Abilities which can modify the chance to cause an additional effect. Serene Grace doubles their chances of occurring when the user attacks (up to 100%), Sheer Force removes them from the user's moves but boosts their damage, and Shield Dust removes them from moves that hit the Pokémon without giving a power boost to compensate. The rainbow created by Water Pledge when used in combination with Fire Pledge also doubles the chances of additional effects, resulting in a quadruple chance when combined with Serene Grace, except that chances to flinch can only be doubled once. Internally, the chance is stored in a byte; as such if it is increased past 255 by combination of the Ability and the rainbow effect, it will overflow back to 0. This only matters for Charge Beam, whose 70% would become 280% and overflow back to 24%, as moves with 100% effect chance will overflow back to 100%.

Moves that always lower the user's stat stages such as Overheat and Close Combat are not treated as moves with an additional effect. HP-draining, such as the effect of Giga Drain, is also not considered an additional effect. The item-removing effect of Knock Off, item-stealing effect of Thief and Covet, status condition-curing effect of Smelling Salts and Wake-Up Slap, barrier-removing effect of Brick Break and Psychic Fangs, and the type-changing effect of Burn Up are not considered additional effects.

Additional effects caused by using Fling while holding specific items are considered to be additional effects by Shield Dust but not by Sheer Force.

The Ability Stench and the held items Razor Fang and King's Rock grant additional effects to moves, though (in the case of the held items) they do not interact with Sheer Force.

List of moves with additional effects

Move Type Category Chance Additional effect Acid Poison Special 10% Lowers the target's Special Defense by 1 stage. Acid Spray Poison Special 100% Lowers the target's Special Defense by 2 stages. Air Slash Flying Special 30% Inflicts flinch on the target. Anchor Shot Steel Physical 100% Traps the target. Ancient Power Rock Special 10% Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. Apple Acid Grass Special 100% Lowers the target's Special Defense by 1 stage. Astonish Ghost Physical 30% Inflicts flinch on the target. Aura Wheel Electric Physical 100% Raises the user's Speed by 1 stage. Aurora Beam Ice Special 10% Lowers the target's Attack by 1 stage. Bite Dark Physical 30% Inflicts flinch on the target. Blaze Kick Fire Physical 10% Inflicts burn on the target. Blizzard Ice Special 10% Inflicts freeze on the target. Blue Flare Fire Special 20% Inflicts burn on the target. Body Slam Normal Physical 30% Inflicts paralysis on the target. Bolt Strike Electric Physical 20% Inflicts paralysis on the target. Bone Club Ground Physical 10% Inflicts flinch on the target. Bounce Flying Physical 30% Inflicts paralysis on the target. Breaking Swipe Dragon Physical 100% Lowers the target's Attack by 1 stage. Bubble Water Special 10% Lowers the target's Speed by 1 stage. Bubble Beam Water Special 10% Lowers the target's Speed by 1 stage. Bug Buzz Bug Special 10% Lowers the target's Special Defense by 1 stage. Bulldoze Ground Physical 100% Lowers the target's Speed by 1 stage. Buzzy Buzz Electric Special 100% Inflicts paralysis on the target. Charge Beam Electric Special 70% Raises the user's Special Attack by 1 stage. Chatter Flying Special 100% Inflicts confusion on the target. Clangorous Soulblaze Dragon Special 100% Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. Confusion Psychic Special 10% Inflicts confusion on the target. Constrict Normal Physical 10% Lowers the target's Speed by 1 stage. Cross Poison Poison Physical 10% Inflicts poison on the target. Crunch Dark Physical 20% Lowers the target's Defense by 1 stage. Crush Claw Normal Physical 50% Lowers the target's Defense by 1 stage. Dark Pulse Dark Special 20% Inflicts flinch on the target. Diamond Storm Rock Physical 50% Raises the user's Defense by 2 stages. Discharge Electric Special 30% Inflicts paralysis on the target. Dizzy Punch Normal Physical 20% Inflicts confusion on the target. Double Iron Bash Steel Physical 30% Inflicts flinch on the target. Dragon Breath Dragon Special 30% Inflicts paralysis on the target. Dragon Rush Dragon Physical 20% Inflicts flinch on the target. Drum Beating Grass Physical 100% Lowers the target's Speed by 1 stage. Dynamic Punch Fighting Physical 100% Inflicts confusion on the target. Earth Power Ground Special 10% Lowers the target's Special Defense by 1 stage. Eerie Spell Psychic Special 100% Reduces the PP of the target's most recently used move by 3. Electroweb Electric Special 100% Lowers the target's Speed by 1 stage. Ember Fire Special 10% Inflicts burn on the target. Energy Ball Grass Special 10% Lowers the target's Special Defense by 1 stage. Extrasensory Psychic Special 10% Inflicts flinch on the target. Fake Out Normal Physical 100% Inflicts flinch on the target. Fiery Dance Fire Special 50% Raises the user's Special Attack by 1 stage. Fire Blast Fire Special 10% Inflicts burn on the target. Fire Fang Fire Physical 19% Inflicts flinch or burn on the target. Fire Lash Fire Physical 100% Lowers the target's Defense by 1 stage. Fire Punch Fire Physical 10% Inflicts burn on the target. Flame Charge Fire Physical 100% Raises the user's Speed by 1 stage. Flame Wheel Fire Physical 10% Inflicts burn on the target. Flamethrower Fire Special 10% Inflicts burn on the target. Flare Blitz Fire Physical 10% Inflicts burn on the target. Flash Cannon Steel Special 10% Lowers the target's Special Defense by 1 stage. Fling Dark Physical 100% Varies with held item. Not considered an additional effect by Sheer Force. Floaty Fall Flying Physical 30% Inflicts flinch on the target. Focus Blast Fighting Special 10% Lowers the target's Special Defense by 1 stage. Force Palm Fighting Physical 30% Inflicts paralysis on the target. Freeze-Dry Ice Special 10% Inflicts freeze on the target. Freeze Shock Ice Physical 30% Inflicts paralysis on the target. Genesis Supernova Psychic Special 100% Creates Psychic Terrain. Glaciate Ice Special 100% Lowers the target's Speed by 1 stage. Grav Apple Grass Physical 100% Lowers the target's Defense by 1 stage. Gunk Shot Poison Physical 30% Inflicts poison on the target. Headbutt Normal Physical 30% Inflicts flinch on the target. Heart Stamp Psychic Physical 30% Inflicts flinch on the target. Heat Wave Fire Special 10% Inflicts burn on the target. Hurricane Flying Special 30% Inflicts confusion on the target. Hyper Fang Normal Physical 10% Inflicts flinch on the target. Ice Beam Ice Special 10% Inflicts freeze on the target. Ice Burn Ice Special 30% Inflicts burn on the target. Ice Fang Ice Physical 19% Inflicts flinch or freeze on the target. Ice Punch Ice Physical 10% Inflicts freeze on the target. Icicle Crash Ice Physical 30% Inflicts flinch on the target. Icy Wind Ice Special 100% Lowers the target's Speed by 1 stage. Inferno Fire Special 100% Inflicts burn on the target. Iron Head Steel Physical 30% Inflicts flinch on the target. Iron Tail Steel Physical 10% Lowers the target's Defense by 1 stage. Jaw Lock Dark Physical 100% Traps the target. Lava Plume Fire Special 30% Inflicts burn on the target. Leaf Tornado Grass Special 30% Lowers the target's accuracy by 1 stage. Lick Ghost Physical 30% Inflicts paralysis on the target. Liquidation Water Physical 20% Lowers the target's Defense by 1 stage. Low Sweep Fighting Physical 100% Lowers the target's Speed by 1 stage. Lunge Bug Physical 100% Lowers the target's Attack by 1 stage. Luster Purge Psychic Special 50% Lowers the target's Special Defense by 1 stage. Metal Claw Steel Physical 10% Raises the user's Attack by 1 stage. Meteor Mash Steel Physical 20% Raises the user's Attack by 1 stage. Mirror Shot Steel Special 30% Lowers the target's accuracy by 1 stage. Mist Ball Psychic Special 50% Lowers the target's Special Attack by 1 stage. Moonblast Fairy Special 30% Lowers the target's Special Attack by 1 stage. Mud Bomb Ground Special 30% Lowers the target's accuracy by 1 stage. Mud Shot Ground Special 100% Lowers the target's Speed by 1 stage. Mud-Slap Ground Special 100% Lowers the target's accuracy by 1 stage. Muddy Water Water Special 30% Lowers the target's accuracy by 1 stage. Mystical Fire Fire Special 100% Lowers the target's Special Attack by 1 stage. Needle Arm Grass Physical 30% Inflicts flinch on the target. Night Daze Dark Special 40% Lowers the target's accuracy by 1 stage. Nuzzle Electric Physical 100% Inflicts paralysis on the target. Octazooka Water Special 50% Lowers the target's accuracy by 1 stage. Ominous Wind Ghost Special 10% Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. Play Rough Fairy Physical 10% Lowers the target's Attack by 1 stage. Poison Fang Poison Physical 50% Inflicts bad poison on the target. Poison Jab Poison Physical 30% Inflicts poison on the target. Poison Sting Poison Physical 30% Inflicts poison on the target. Poison Tail Poison Physical 10% Inflicts poison on the target. Powder Snow Ice Special 10% Inflicts freeze on the target. Power-Up Punch Fighting Physical 100% Raises the user's Attack by 1 stage. Psybeam Psychic Special 10% Inflicts confusion on the target. Psychic Psychic Special 10% Lowers the target's Special Defense by 1 stage. Pyro Ball Fire Physical 10% Inflicts burn on the target. Razor Shell Water Physical 50% Lowers the target's Defense by 1 stage. Relic Song Normal Special 10% Inflicts sleep on the target. Rock Climb Normal Physical 20% Inflicts confusion on the target. Rock Slide Rock Physical 30% Inflicts flinch on the target. Rock Smash Fighting Physical 50% Lowers the target's Defense by 1 stage. Rock Tomb Rock Physical 100% Lowers the target's Speed by 1 stage. Rolling Kick Fighting Physical 30% Inflicts flinch on the target. Sacred Fire Fire Physical 50% Inflicts burn on the target. Scald Water Special 30% Inflicts burn on the target. Scale Shot Dragon Physical 100% Raises the user's Speed by 1 stage and lowers the user's Defense by 1 stage. Scorching Sands Ground Special 30% Inflicts burn on the target. Searing Shot Fire Special 30% Inflicts burn on the target. Secret Power Normal Physical 30% Special: Inflicts varying conditions depending on the battle environment. See Secret Power. Seed Flare Grass Special 40% Lowers the target's Special Defense by 2 stages. Shadow Ball Ghost Special 20% Lowers the target's Special Defense by 1 stage. Shadow Bone Ghost Physical 20% Lowers the target's Defense by 1 stage. Signal Beam Bug Special 10% Inflicts confusion on the target. Silver Wind Bug Special 10% Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. Sizzly Slide Fire Physical 100% Inflicts burn on the target. Skitter Smack Bug Physical 100% Lowers the target's Special Attack by 1 stage. Sky Attack Flying Physical 30% Inflicts flinch on the target. Sludge Poison Special 30% Inflicts poison on the target. Sludge Bomb Poison Special 30% Inflicts poison on the target. Sludge Wave Poison Special 10% Inflicts poison on the target. Smog Poison Special 40% Inflicts poison on the target. Snarl Dark Special 100% Lowers the target's Special Attack by 1 stage. Snore Normal Special 30% Inflicts flinch on the target. Spark Electric Physical 30% Inflicts paralysis on the target. Sparkling Aria Water Special 100% If the target has a burn, cures that burn. Spirit Break Fairy Physical 100% Lowers the target's Special Attack by 1 stage. Spirit Shackle Ghost Physical 100% Traps the target. Splishy Splash Water Special 30% Inflicts paralysis on the target. Steam Eruption Water Special 30% Inflicts burn on the target. Steamroller Bug Physical 30% Inflicts flinch on the target. Steel Wing Steel Physical 10% Raises the user's Defense by 1 stage. Stoked Sparksurfer Electric Special 100% Inflicts paralysis on the target. Stomp Normal Physical 30% Inflicts flinch on the target. Strange Steam Fairy Special 20% Inflicts confusion on the target. Struggle Bug Bug Special 100% Lowers the target's Special Attack by 1 stage. Throat Chop Dark Physical 100% Prevents the target from using sound-based moves. Thunder Electric Special 30% Inflicts paralysis on the target. Thunder Fang Electric Physical 19% Inflicts flinch or paralysis on the target. Thunder Punch Electric Physical 10% Inflicts paralysis on the target. Thunder Shock Electric Special 10% Inflicts paralysis on the target. Thunderbolt Electric Special 10% Inflicts paralysis on the target. Tri Attack Normal Special 20% Inflicts burn, freeze, or paralysis on the target. Trop Kick Grass Physical 100% Lowers the target's Attack by 1 stage. Twineedle Bug Physical 20% Inflicts poison on the target. Twister Dragon Special 20% Inflicts flinch on the target. Volt Tackle Electric Physical 10% Inflicts paralysis on the target. Water Pulse Water Special 20% Inflicts confusion on the target. Waterfall Water Physical 20% Inflicts flinch on the target. Zap Cannon Electric Special 100% Inflicts paralysis on the target. Zen Headbutt Psychic Physical 20% Inflicts flinch on the target. Zing Zap Electric Physical 30% Inflicts flinch on the target.

See also

• Moves by effect