Flamecackle Shaman

When Flamecackle Shaman enters the battlefield, you may sacrifice a red creature.
If you do, put X Fire counters on Flamecackle Shaman, where X is the sacrificed creature's converted mana cost.
{r}{t}, Sacrifice Flamecackle Shaman: Deal damage to target creature or player equal to the number of Fire counters on Flamecackle Shaman.