| Type | normal |
| Category | Physical |
| Power | 0 |
| Accuracy | 100 |
| PP | 15 |
| Introduced | Generation 2 |
Flail deals more damage the lower the user's HP. The following formula is used:
The value of N is then used to determine the base power, as per the table below. It converts to some quite specific percentages which are also shown.
When a Pokémon is holding Normalium Z and uses its Z-Power, Flail turns into Breakneck Blitz and has base power 160.
| Gold Silver Crystal | Stronger if the user’s HP is low. |
| Ruby Sapphire Emerald | Inflicts more damage when the user’s HP is down. |
| FireRed LeafGreen | A desperate attack that becomes more powerful the less HP the user has. |
| Diamond Pearl Platinum HeartGold SoulSilver | The user flails about aimlessly to attack. It becomes more powerful the less HP the user has. |
| Black White Black 2 White 2 | The user flails about aimlessly to attack. It becomes more powerful the less HP the user has. |
| X Y O.Ruby A.Sapphire | The user flails about aimlessly to attack. The less HP the user has, the greater the move’s power. |
| Sun Moon Ultra Sun Ultra Moon | The user flails about aimlessly to attack. The less HP the user has, the greater the move’s power. |
| Sword Shield B.Diamond S.Pearl | The user flails about aimlessly to attack. The less HP the user has, the greater the move’s power. |
| English | Flail |
|---|---|
| Spanish | Azote |
| Italian | Flagello |
| Japanese | じたばた (Jitabata) |
| German | Dreschflegel |
| French | Fléau |