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

: Add  or to your mana pool.

Sacrifice Wooded Carnarium: Add  or to your mana pool.

: Wooded Carnarium becomes a 2/2 black and green Treefolk creature with trample until end of turn. It's still a land.