Nithna, the Flame Weaver

Whenever you cast an Instant or Sorcery that deals damage, this card gains a flame counter.
Instant or Sorcery that deal damage deal 1 more for each flame counter you have.
Whenever a creature dies from an Instant or Sorcery that deal damage, put a token that's a copy of that creature, except it is red and is an elemental in addition with it's other types.