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

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

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

: Godless Store becomes a 2/2 black Specter creature until end of turn. It's still a land.