Percy, Son of Poseidon

Whenever creature with the name black jack
enters the field this creature get +2power/+2 toughness
{u}{u}{u}{u}{u}{u}{u} -the curse of Achilles :creature
gains double power/toughness for the remainder
of the turn
Tsunami: For every 6 blue mana you tap you
can send a opponent's creature back to their
hand if opponent has more than seven cards in
hand they discard until they have seven cards