(Molten Watchtower isn't a spell.)
At the beginning of your end step, if you didn't cast any spells this turn, Molten Watchtower deals 1 damage to you.
Red creatures get +2/-1.
: Add to your mana pool. Return Molten Watchtower to its owner's hand.
: Add 
to your mana pool. Return Molten Watchtower to its owner's hand.
