Attacks
Life Drain
Colorless
Flip a coin. If heads, put damage counter on the Defending Pokémon until it is 10 HP away from being Knocked Out.
Shadow Dance
Psychic, Psychic, Colorless
Put 4 damage counters on your opponent's Pokémon in any way you like. Then, switch Gengar with 1 of your Benched Pokémon.