Poseidon

Posiden is a god and is immortal
{4}{u}{u}{u}{b}Fish friends
Summon three water-based creatures and add them to your deck
{9}{u}{u}{u}{u}{u}{u}{b}{b}Wow that's a lot of water
A large body of water will kill 2 enemy cards
{5}{b}{b}{b}{g}{b}{g}{g}Earthquake
kills 1 enemy cards