Death Wish

Spells you cast cost {1} more to cast.
Whenever a source would deal damage to you, it
deals twice that much damage to you instead, and
you may put a death counter on Death Wish.
At the beginning of your end step, if you have
exactly 1 life and no cards in your hand, and
there are five or more death counters on Death
Wish, you may transform Death Wish.