When Steppe Seafloor enters the battlefield, sacrifice it unless you pay 2 life.
: Add to your mana pool. Return Steppe Seafloor to its owner's hand.
: Steppe Seafloor becomes a 2/2 blue Wizard creature until end of turn. It's still a land.
: Add 
to your mana pool. Return Steppe Seafloor to its owner's hand.
: Steppe Seafloor becomes a 2/2 blue Wizard creature until end of turn. It's still a land.
