Tentacruel

Strange Tentacles is an interesting Poke-Power that you can use only when your Active Pokémon has more Energy attached to it than the Defending Pokémon. It lets you put an Energy card from your opponent's discard pile back onto the Defending Pokémon. A good trick is to use it to put a Darkness energy on a non-Darkness Pokémon or to combine it with the Syncroblast attack of Alakazam (B-84). Poison Sting does 20 damage to the Defending Pokémon and makes it poisoned on a coin flip of heads. This Tentacruel is easy to play with, as it has no Retreat Cost.