Salty Foundry
Land-Island Mountain (Rare)

(Tap: Add U or R to your mana pool.)

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

3: Salty Foundry becomes a 2/2 blue Wizard creature until end of turn. It's still a land.

James Staples