When Tidal Forge enters the battlefield, sacrifice it unless you pay .
, : Add , or to your mana pool. Tidal Forge deals 1 damage to you.
: Tidal Forge becomes a 1/1 white and blue Illusion creature with flying until end of turn. It's still a land.
.
, 
: Add , 
or to your mana pool. Tidal Forge deals 1 damage to you.: Tidal Forge becomes a 1/1 white and blue Illusion creature with flying until end of turn. It's still a land.
