Merfolk Karst enters the battlefield tapped unless you pay .
, : Add , or to your mana pool. Merfolk Karst deals 1 damage to you.
: Merfolk Karst becomes a 2/2 green and blue Merfolk Crab creature with trample until end of turn. It's still a land.
.
, 
: Add 
, 
or to your mana pool. Merfolk Karst deals 1 damage to you.: Merfolk Karst becomes a 2/2 green and blue Merfolk Crab creature with trample until end of turn. It's still a land.
