Merfolk Flats enters the battlefield tapped.
, : Add , or to your mana pool. Merfolk Flats deals 1 damage to you.
, Sacrifice Merfolk Flats: Add to your mana pool.
, 
: Add 
, 
or to your mana pool. Merfolk Flats deals 1 damage to you., Sacrifice Merfolk Flats: Add 
to your mana pool.
