Atlanta, Waking City

Atlanta, Waking City isn’t a creature.
{t} Add {u}{u}{u} to your mana pool. Spend this mana only to cast fish, crabs, squids, krakens, merfolk, turtles, octopi, sharks or leviathans.
{t}{5}{u}{u}{u} Atlanta, Waking City becomes a creature until end of turn.