Heatblast.

Alien x or full stop

Actually nrg is damn hot

NRG, Heatblast, Wispunch

Heatblast is nothing also necro

I for one think it’s Atomix.

But then again, Ben when he was turned 4 years old by the fountain of youth created a supernova as toddler Heatblast.

Atomix is amateur compared to heatblast and nrg