Geo-Ionikinesis: my creature is capable of generating plasmoid flames from thin air, not requiring the consumption of oxygen or combustible objects to maintain the flames. He has been seen being able to increase the temperature within his proximity which allows him to engulf his entire body into a flaming/molten rock form, fire concentrated plasma blasts from his hands and endure extreme heat and flame without being harmed.how would this work? what materials is my creature made of that make possible and what compounds allows these effects?
He's some sort of silicon lifeform.
Carbon biology doesn't work well with extreme heat. As such, this being is some sort of rock monster made of complex silicon chains.
They produce lots of methane and oxidizing agents.
They can squirt out from compressed internal stores burning gases which sometimes get hot enough to do plasma. Flamethrowers can burn for about 10 seconds, so assume they have about ten seconds of full massive flames that go 40 meters, and maybe a few minutes of just being burny without refueling.
Best I can figure, your creature has to:
Have some way to spawn new matter into existence, or:
To teleport matter from somewhere else, or:
You could say that there is a form of either matter or energy, like aether, that is quite abundant, but that does not register as one of the 118 atoms on the periodic table, and that your creature can simply transmute the aether into the substances required for the plasmoid flames your creature makes.
That being said, the latter two of these methods would have it so that your creature is technically not making these plasmoid flames out of thin air, although it could still appear as though it was.
So... it must be made of whichever types of materials would allow it to do one of these types of options.