Forge Stoker

When Forge Stoker enters the battlefield, if
its stalk cost was paid, it deals 2 damage to
the creature it's blocking.
Stalk {1}{r}{r} (At the end of each block step, if there is an unblocked creature attacking you, you may cast this card for its stalk cost. If you do, choose an unblocked creature attacking you. This creature blocks that creature.)