Geyser (move)

Geyser (Japanese: かんけつせん) is a damage-dealing Water-type move created by WD for Generation C.

Effect
Geyser deals damage as if it were also a Ground-type move; damage is calculated according to the target's resistances and weaknesses to either Water or Ground-type damage, but not a combination of the two. Resistance outweighs weakness:

Pokémon that are weak to either Water or Ground will receive 200% damage. Pokémon that are resistant to either Water or Ground will receive 50% damage. Pokémon that are super weak to either Water or Ground will receive 400% damage. Pokémon that are super resistant to either Water or Ground will receive 25% damage. Pokémon who are unaffected by Ground-type damage will be unaffected by Geyser.

Ground-type Pokémon do not receive STAB from Geyser.