Ganishka, Dread Emperor

You may spend life to cast instant or sorceries
instead of its manacost.
Whenever a creature is sacrificed gain 1 life.
If you lose 10 life during a turn you may
transform Ganishka, Dread Emperor.
Life... The world... It's all darkness. In the
all-engulfing darkness, you fear, you instill fear, you
writhe and creep.