Crazed Bloodmage

Lifelink
When Crazed Bloodmage dies, you may exile it.
If you do, each opponent loses 2 life and you
gain 2 life.
Stalk {1}{b}{b} (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.)