Cost needs raised so that immolate cant supply it power.
I have a ruby dragon out (15 base damage) and 4 photons. I Use this on my dragon, immolate 2 photons, play a dragon, use this card. Immolate 2 more, and summon a dragon. I win! Or if I wanted Overkill, then I could use another of this card to burn my final dragon as well
2(15*3)+15=105
or
3(15*3)=135
And that wouldnt be hard to do. Just pack 3 dragons, 4 photons, 3 final bursts, and 4 immolates, and you are good to go. You could even make a otk pillarless deck out of this. Way too powerful. Needs definite balancing.