There's a Dark-type Pokémon move Pursuit, which usually inflicts 40 damage (less than e.g. Bite, which does 60 damage), but inflicts twice as much (80) damage if the target switches out on this turn...
But how do I know whether my opponent switches out on this turn? Do I just have to guess?
@vaporeon_ yes
@vaporeon_ so saying “you have to guess” isn’t really right, as the move’s strength is that it creates situations where you DON’T need to guess