Roar (move)

Roar (Japanese: ほえる Roar) is a non-damaging move introduced in Generation I. It has been TM05 since Generation II.

Generation I
If Roar is used in a wild Pokémon battle by a Pokémon on either side, the battle will automatically end. In a Trainer battle, Roar has no effect. Roar has 100% accuracy and normal priority.

If the user's level is less than the target's level, there is a chance that Roar will fail. More specifically, the chance of failing is, where T is the target's level and U is the user's level. This means that the chance of failure is always between approximately 12.5% and 25%, with a higher chance when the target's level is much greater than the user's.

Generation II
When in a Trainer battle, Roar will now force the target to switch with a randomly chosen Pokémon from its Trainer's party. If there is no Pokémon for the target to switch with, Roar will fail. Roar now has a priority of -1.

Roar's chance to fail does not apply to Trainer battles. However, in Trainer battles, Roar will always fail if used before the opponent has made its move.

Generation III to IV
Roar will fail when used against Pokémon with the Abilities and  or rooted by. It no longer fails if it is not used last.

If the user's level is less than the target's, the chance of failure is now calculated slightly differently. Given the terms T for the target's level, U for the user's level, and X for a random integer from 0 to 255, a term R can be calculated where. If R is less than or equal to T/4, Roar fails. The chance of Roar failing can generally be approximated by ; the true chance of failing may diverge moderately from that approximation for low values of T and U.

Roar now has a priority of -6.

Generation V
In wild Pokémon battles, Roar will now always fail if the user's level is less than the target's. In Trainer battles, Roar will now succeed if it hits, regardless of either Pokémon's level.

Roar is now reflected by and.

If a battle with wild Pokémon ever involves more than one Pokémon on each side of the battle, Roar will fail if used by the player's Pokémon against a wild Pokémon, but if a wild Pokémon uses it against the player, it will force the target to switch with another Pokémon in the Trainer's party, regardless of the target's level.

Generation VI onward
Roar now bypasses checks to always hit, unless the target is in the  of a move such as  or. Roar can now hit a target even if it has used, , or , but will fail if the target is protected by.

Roar can be used as part of a Contest Spectacular combination, with the user gaining extra three appeal points if any of the moves, or  was used in the prior turn.

If used by the Trainer's Pokémon in an SOS Battle, Roar will fail.

If powered up by a Normalium Z into Z-Roar, the user's stat rises by one stage.

Description

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Pokémon Mystery Dungeon series
Roar blows away the opponent in front in a straight line, contrary to the direction it is facing. If it hits a wall, it takes 5 damage. If it hits another Pokémon, both Pokémon take 5 damage. If it falls to a space where it cannot stand, such as a sky or water tile, it will be randomly teleported elsewhere in the dungeon.

Description

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Trivia

 * Although the sound-based move mechanic was introduced in Generation III, Roar is listed in move index number near other Generation I sound-based moves:, , and.

In other languages
Brüller Rugido Hurlement Boato ほえる 吼叫（招式）