To attach a Water Energy card from your hand to Suicune, you must discard an Energy card attached to Suicune. (Attach the Water Energy, and then discard an Energy card from Suicune.)

Hypno Wave

30+

Flip a coin. If heads, this attack does 30 damage plus 20 more damage. If tails, this attack does 30 damage and the Defending Pokémon is now Asleep.