Tidal Cairns enters the battlefield tapped unless you reveal an Illusion card from your hand.
: Add or to your mana pool.
Sacrifice Tidal Cairns: Add or to your mana pool.
: Return Tidal Cairns to its owner's hand.
: Add 
or 
to your mana pool. or to your mana pool.: Return Tidal Cairns to its owner's hand.
