At the beginning of your end step, if you didn't cast any spells this turn, Tranquil Grave deals 1 damage to you.

: Add  to your mana pool. Activate this ability only if you control a Plains.

: Add  to your mana pool. Activate this ability only if you control a Swamp.

, , Sacrifice Tranquil Grave: Target creature gets -2/-2 until end of turn.