Board Thread:General Discussion/@comment-24074103-20131204160455/@comment-679780-20131204204153

I believe the purple aura around his punch attack is simply special effects and that his standard punches are not fire based at all.

However, I do believe Tomison is perhaps correct to a degree. I don't think Knuckles is a firebender or an earthbend|earthbend, however Knuckles can perhaps convert his own rage into heat or extra strength. For example he can cause quakes by punching the ground or bring up rocks to use as projectiles. He can further his wrath by setting the object on fire.

The explanation for how Knuckles can convert his anger into strength or heat is a blend of gameplay logic and comical humour in which works out well. The ability to be so angry to be able to cause quakes or set things on fire is a gag from most slapstick moments in cartoons that are simply brought into Knuckles to make use of his skillset.

But I really do not know if this will count as both pyro and geokinetic since it's mostly a gag than genuine reason of his power.