Heat Crash deals damage. Its power depends on the weight of both the user and the target; the lighter the target is in comparison to the user, the greater the power:
Target's relative weight
More than 50%
33.34% - 50%
25% - 33.33%
20% - 25%
20% or less
If the target has used Minimize, Heat Crash now deals double its regular damage and bypasses accuracy checks to always hit, unless the target is in the semi-invulnerable turn of a move such as Dig or Fly.
The user slams its target with its flame-covered body. The more the user outweighs the target, the greater the move's power.