At the beginning of your end step, if you didn't cast any spells this turn, Graven Tar Pit deals 1 damage to you.
: Add or to your mana pool.
Sacrifice Graven Tar Pit: Add or to your mana pool.
: Regenerate target Cleric.
: Add 
or 
to your mana pool. or to your mana pool.
: Regenerate target Cleric.
