Additional effect

An additional effect (Japanese: additional effect), sometimes also called an added effect, is the in-battle secondary effect of a damaging move.
==Additional effect modifiers==
There are several moves and , as well as an item, which influence the additional effects of moves.
* The Ability doubles the chances of the Pokémon's own moves' additional effects occurring (up to 100%).
* The Ability shields the Pokémon from the additional effects of moves.
* The Ability boosts the damage of the Pokémon's own moves with additional effects, but prevents their additional effects from occurring.
* The rainbow created by when used in combination with doubles the chances of additional effects occurring.
* The held item Covert Cloak protects the holder from the additional effects of moves.
The effects of the rainbow and Serene Grace stack, except for chances to flinch (which can only be doubled once), meaning that when used together they quadruple the chance of additional effects. Internally, the chance of an additional effect is stored in a byte; as such, in Generations V to VIII, if the chance of an additional effect is increased past 255 by a combination of Serene Grace and the rainbow effect, it will overflow and wrap back around from 0. This only matters for Charge Beam, whose 70% chance would become 280%, thus causing it to overflow to 24%, as moves with 100% effect chance would overflow back to 100%.
==Classification==
Only damaging moves can count as moves with additional effects. Additional effects typically include moves with a chance to increase the user's stats, decrease the target's stats, inflict status conditions, or cause flinching. Even if the effect has a 100% chance of applying, it can still be classified as an additional effect.
Some moves have multiple additional effects; for example, has a 10% chance of the target and an independent 10% chance of causing the target to .
The effects of , , , , , , , and are explicitly enumerated as being additional effects, though they would not otherwise be counted as such if not for this exception. Notably, (which otherwise has an identical effect to Anchor Shot and Spirit Shackle) is not considered to have additional effects.
The Abilities and and the held items Razor Fang and King's Rock grant additional effects to moves. However, Sheer Force only boosts moves that always have additional effects; granting a move an additional effect this way will not allow it to be boosted by Sheer Force if it otherwise would not, but these effects will be suppressed by Sheer Force if it is boosted by Sheer Force (due to already having an additional effect). Similarly, additional effects caused by using while holding specific items are additional effects and are blocked by Shield Dust, but Fling is not affected by Sheer Force (regardless of the held item).
Max Moves are not considered to have additional effects, but some Z-Moves (such as and ) are.
Moves that lower the user's stat stages (such as and ) are not considered to have an additional effect, even if they also raise a stat (such as ). , such as the effect of , is also not considered an additional effect. The item-removing effect of , item-stealing effect of and , status condition-curing effect of and , barrier-removing effect of and , the type-changing effect of and , and switch-forcing effect of and are not considered additional effects.
==List of moves with additional effects==
{| border=1 width="100%" class="sortable" style="margin:auto; text-align:center; background: #FFFFFF; border:1px solid #ddf; border-collapse:collapse;"	 	 		
	 	 		
	10% 	Lowers the target's by 1 stage. 		
	100% 	Lowers the target's Special Defense by 2 stages. 		
	30% 	Inflicts flinch on the target. 		
	100% 	Traps the target. 		
	10% 	Raises all of the user's stats (, , , Special Defense, and ) by 1 stage. 		
	100% 	Lowers the target's Special Defense by 1 stage. 		
	100% 	Raises the user's Speed by 1 stage. 		
	30% 	Inflicts flinch on the target. 		
	100% 	Raises the user's Speed by 1 stage. 		
	10% 	Lowers the target's Attack by 1 stage. 		
	30% 	Inflicts on the target. 		
	 	Inflicts on the target. 		
	30% 	Inflicts flinch on the target. 		
	100% 	Lowers the target's Attack by 1 stage. 		
	10% 	Inflicts on the target. 		
	30% 	Inflicts burn on the target. 		
	 	Lowers the target's Speed by 1 stage. 		
	10% 	Inflicts on the target. 		
	20% 	Inflicts burn on the target. 		
	30% 	Inflicts on the target. 		
	20% 	Inflicts paralysis on the target. 		
	10% 	Inflicts flinch on the target. 		
	30% 	Inflicts paralysis on the target. 		
	100% 	Lowers the target's Attack by 1 stage. 		
	10% 	Lowers the target's Speed by 1 stage. 		
	10% 	Lowers the target's Speed by 1 stage. 		
	10% 	Lowers the target's Special Defense by 1 stage. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	Varies	Inflicts burn on targets with increased stats. 		
	100% 	Inflicts paralysis on the target. 		
	100% 	Creates on the target's side of the field. 		
	70% 	Raises the user's Special Attack by 1 stage. 		
	 	Inflicts confusion on the target. 		
	100% 	Lowers the target's Attack by 1 stage. 		
	100% 	Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. 		
	30% 	Inflicts paralysis on the target. 		
	10% 	Inflicts confusion on the target. 		
	10% 	Lowers the target's Speed by 1 stage. 		
	10% 	Inflicts poison on the target. 		
	20% 	Lowers the target's Defense by 1 stage. 		
	50% 	Lowers the target's Defense by 1 stage. 		
	20% 	Inflicts flinch on the target. 		
	50% 	Raises the user's Defense by 2 stages. 		
	 	Inflicts poison, paralysis, or on the target. 		
	30% 	Inflicts paralysis on the target. 		
	20% 	Inflicts confusion on the target. 		
	30% 	Inflicts flinch on the target. 		
	30% 	Inflicts paralysis on the target. 		
	20% 	Inflicts flinch on the target. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	100% 	Inflicts confusion on the target. 		
	10% 	Lowers the target's Special Defense by 1 stage. 		
	100% 	Reduces the PP of the target's most recently used move by 3. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	10% 	Inflicts burn on the target. 		
	10% 	Lowers the target's Special Defense by 1 stage. 		
	100% 	Raises the user's Speed by 1 stage. 		
	10% 	Inflicts flinch on the target. 		
	100% 	Inflicts flinch on the target. 		
	50% 	Raises the user's Special Attack by 1 stage. 		
	20% 	Inflicts flinch on the target. 		
	10% 	Inflicts burn on the target. 		
	 	Inflicts flinch or burn on the target. 		
	100% 	Lowers the target's Defense by 1 stage. 		
	10% 	Inflicts burn on the target. 		
	100% 	Raises the user's Speed by 1 stage. 		
	10% 	Inflicts burn on the target. 		
	10% 	Inflicts burn on the target. 		
	10% 	Inflicts burn on the target. 		
	10% 	Lowers the target's Special Defense by 1 stage. 		
	100% 	Varies with held item. Not considered an additional effect by Sheer Force. 		
	30% 	Inflicts flinch on the target. 		
	10% 	Lowers the target's Special Defense by 1 stage. 		
	30% 	Inflicts paralysis on the target. 		
	10% 	Inflicts freeze on the target. 		
	30% 	Inflicts paralysis on the target. 		
	10% 	Inflicts freeze on the target. 		
	100% 	Creates Psychic Terrain. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	100% 	Lowers the target's Defense by 1 stage. 		
	30% 	Inflicts poison on the target. 		
	30% 	Inflicts flinch on the target. 		
	30% 	Inflicts flinch on the target. 		
	10% 	Inflicts burn on the target. 		
	30% 	Inflicts confusion on the target. 		
	10% 	Inflicts flinch on the target. 		
	10% 	Inflicts freeze on the target. 		
	30% 	Inflicts burn on the target. 		
	 	Inflicts flinch or freeze on the target. 		
	10% 	Inflicts freeze on the target. 		
	30% 	Inflicts flinch on the target. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	30% 	Inflicts burn on the target. 		
	100% 	Inflicts burn on the target. 		
	30% 	Inflicts flinch on the target. 		
	10% 	Lowers the target's Defense by 1 stage. 		
	30% 	Inflicts burn on the target. 		
	30% 	Lowers the target's accuracy by 1 stage. 		
	30% 	Inflicts paralysis on the target. 		
	20% 	Lowers the target's Defense by 1 stage. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	100% 	Lowers the target's Special Defense by 2 stages. 		
	100% 	Lowers the target's Attack by 1 stage. 		
	50% 	Lowers the target's Special Defense by 1 stage. 		
	30% 	Inflicts confusion on the target. 		
	50% 	Inflicts badly poisoned on the target. 		
	20% 	Inflicts burn on the target. 		
	10% 	Raises the user's Attack by 1 stage. 		
	20% 	Raises the user's Attack by 1 stage. 		
	30% 	Lowers the target's accuracy by 1 stage. 		
	50% 	Lowers the target's Special Attack by 1 stage. 		
	30% 	Lowers the target's Special Attack by 1 stage. 		
	100% 	Inflicts poison on the target. 		
	30% 	Inflicts flinch on the target. 		
	30% 	Lowers the target's accuracy by 1 stage. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	100% 	Lowers the target's accuracy by 1 stage. 		
	30% 	Lowers the target's accuracy by 1 stage. 		
	100% 	Lowers the target's Special Attack by 1 stage. 		
	100% 	Raises the user's Special Attack by 1 stage. 		
	30% 	Inflicts flinch on the target. 		
	40% 	Lowers the target's accuracy by 1 stage. 		
	30% 	Inflicts poison on the target. 		
	100% 	Inflicts paralysis on the target. 		
	50% 	Lowers the target's accuracy by 1 stage. 		
	10% 	Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. 		
	 	Raises one of the user's stats (Attack, Defense, or Speed) by 1 stage. The boosted stat depends on the 's form. See . 		
	10% 	Lowers the target's Attack by 1 stage. 		
	 	Inflicts bad poison on the target. 		
	30% 	Inflicts poison on the target. 		
	30% 	Inflicts poison on the target. 		
	10% 	Inflicts poison on the target. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	10% 	Inflicts freeze on the target. 		
	100% 	Raises the user's Attack by 1 stage. 		
	10% 	Inflicts confusion on the target. 		
	10% 	Lowers the target's Special Defense by 1 stage. 		
	100% 	Prevents the target from recovering HP for 2 turns. Can also hit the substitute. 		
	100% 	Raises the user's Defense by 1 stage. 		
	10% 	Inflicts burn on the target. 		
	100% 	Raises the user's Speed by 1 stage. 		
	50% 	Lowers the target's Defense by 1 stage. 		
	10% 	Inflicts sleep on the target. 		
	20% 	Inflicts confusion on the target. 		
	30% 	Inflicts flinch on the target. 		
	50% 	Lowers the target's Defense by 1 stage. 		
	100% 	Lowers the target's Speed by 1 stage. 		
	30% 	Inflicts flinch on the target. 		
	50% 	Inflicts burn on the target. 		
	100% 	Inflicts 1/8 of the target's maximum HP as damage per turn; if the target is or , it inflicts 1/4 of the target's max HP as damage.		
	 	Inflicts burn on the target. 		
	30% 	Inflicts burn on the target. 		
	30% 	Inflicts burn on the target. 		
	30% 	Inflicts burn on the target. 		
	30% 	Special: Inflicts varying conditions depending on the battle environment. See . 		
	40% 	Lowers the target's Special Defense by 2 stages. 		
	20% 	Lowers the target's Special Defense by 1 stage. 		
	20% 	Lowers the target's Defense by 1 stage. 		
	20% 	Inflicts poison on the target. 		
	10% 	Inflicts confusion on the target. 		
	10% 	Raises all of the user's stats (Attack, Defense, Special Attack, Special Defense, and Speed) by 1 stage. 		
	100% 	Inflicts burn on the target. 		
	100% 	Lowers the target's Special Attack by 1 stage. 		
	30% 	Inflicts flinch on the target. 		
	30% 	Inflicts poison on the target. 		
	30% 	Inflicts poison on the target. 		
	10% 	Inflicts poison on the target. 		
	40% 	Inflicts poison on the target. 		
	100% 	Lowers the target's Special Attack by 1 stage. 		
	30% 	Inflicts flinch on the target. 		
	30% 	Inflicts paralysis on the target. 		
	100% 	If the target has a burn, cures that burn. 		
	100% 	Lowers the target's Special Attack by 1 stage. 		
	100% 	Traps the target. 		
	30% 	Inflicts paralysis on the target. 		
	30% 	Lowers the target's Attack by 1 stage. 		
	30% 	Inflicts burn on the target. 		
	30% 	Inflicts flinch on the target. 		
	10% 	Raises the user's Defense by 1 stage. 		
	100% 	Inflicts paralysis on the target. 		
	30% 	Inflicts flinch on the target. 		
	100% 	Creates on the target's side of the field. 		
	20% 	Inflicts confusion on the target. 		
	100% 	Lowers the target's Special Attack by 1 stage. 		
	100% 	Causes the target's Speed to be lowered by 1 stage each turn for 3 turns. 		
	100% 	Prevents the target from using sound-based moves. 		
	30% 	Inflicts paralysis on the target. 		
	 	Inflicts flinch or paralysis on the target. 		
	10% 	Inflicts paralysis on the target. 		
	10% 	Inflicts paralysis on the target. 		
	10% 	Inflicts paralysis on the target. 		
	100% 	Lowers the target's Defense by 1 stage. 		
	100% 	Raises the user's Special Attack by 1 stage. 		
	100% 	Raises the user's Speed by 1 stage. 		
	 	Inflicts burn, freeze, or paralysis on the target. 		
	 	Lowers the target's Defense by 1 stage or inflicts flinch on the target. 		
	100% 	Lowers the target's Attack by 1 stage. 		
	20% 	Inflicts poison on the target. 		
	20% 	Inflicts flinch on the target. 		
	10% 	Inflicts paralysis on the target. 		
	20% 	Inflicts confusion on the target. 		
	20% 	Inflicts flinch on the target. 		
	10% 	Inflicts sleep on the target. 		
	20% 	Inflicts paralysis on the target. 		
	100% 	Inflicts paralysis on the target. 		
	20% 	Inflicts flinch on the target. 		
	30% 	Inflicts flinch on the target. 		
==In other languages==
==See also==
*
Category:Game mechanics
it:Effetti aggiuntivi
ja:追加効果
zh:追加效果