Moonring Den enters the battlefield tapped.
: Add or to your mana pool.
: Moonring Den becomes a 0/4 white and blue Merfolk creature with defender until end of turn. It's still a land.
: Add 
or 
to your mana pool.
: Moonring Den becomes a 0/4 white and blue Merfolk creature with defender until end of turn. It's still a land.
