Chandra's Ritual

At the beginning of your upkeep you may discard a card, if you do Chandra's Ritual deals 3 damage to target creature an opponent controls.
{4}{r}{r}Chandra's Ritual deals 1 damage to each creature target opponent controls .
{4}{r}{r}{r}Chandra's Ritual deals 4 damage to target opponent.
"My fire burns !"
-Chandra Nalaar