When Level Seafloor enters the battlefield, sacrifice it unless you pay .
: Add to your mana pool. Level Seafloor doesn't untap during your next untap step.
: Level Seafloor becomes a 2/2 white Angel creature until end of turn. It's still a land.
.
: Add 
to your mana pool. Level Seafloor doesn't untap during your next untap step.
: Level Seafloor becomes a 2/2 white Angel creature until end of turn. It's still a land.
