Arbok (Mystery of the Fossils No. 004)
$—
0
Grass
Terror Strike
10

Flip a coin. If heads and if your opponent has any Benched Pokémon, he or she chooses 1 of them and switches it with the Defending Pokémon. (Do the damage before switching the Pokémon.)

Grass Grass Colorless
Poison Fang
20

The Defending Pokémon is now Poisoned.