Horizon Skerry enters the battlefield tapped unless you pay .
, : Add to your mana pool.
: Horizon Skerry becomes a 0/4 white and blue Citizen creature with defender until end of turn. It's still a land.
.
, 
: Add 
to your mana pool., : Add to your mana pool.
: Horizon Skerry becomes a 0/4 white and blue Citizen creature with defender until end of turn. It's still a land.
