(Razorverge Palace isn't a spell.)
Razorverge Palace enters the battlefield tapped.
: Target player exiles a card from his or her graveyard.
: Add or to your mana pool.
Sacrifice Razorverge Palace: Add or to your mana pool.
: Target player exiles a card from his or her graveyard.: Add 
or 
to your mana pool. or to your mana pool.
