(Moonring Crypt isn't a spell.)
Moonring Crypt enters the battlefield tapped unless you pay .
, : Look at target player's hand.
: Add or to your mana pool.
Put Moonring Crypt on top of your library: Add to your mana pool.
., 
: Look at target player's hand.: Add 
or 
to your mana pool. to your mana pool. 
