Niv-Mizzet, Victorious

Whenever you cast a spell, draw a card.
Whenever you draw a card deal 1 damage to any
target.
If you would lose life as a result of drawing a
card, you gain that much life instead. If you, or a creature you control would take damage as the
result of drawing a card, Niv-Mizzet, Victorious
deals twice that amount of damage back to its
source.