To consider balance...
With Nova or Immolation, I feel the chance of it not touching
to summon it makes it kind of a sense of balance.
In a strict MonoFire without Immolation and this splashed in, It becomes a 3 for 5|1 or 4 for 7|1, making it comparable to Golem and Phoenix respectably. However, I feel those two are still usable since they have a means of sustaining themselves.
Should this have it as a passive ability? So if lobo'd, it drops to 1|1?