Explosion Manipulation

Imagine having the ability to blow up anything within 15 meters just by swearing.

I'm trying to understand how volatility works, it's confusing to me. So there are explosions, combustion, and volatility, but I don't know the difference. What makes one better than the other, and what is volatility supposed to do?

You gained Explosion Generation/Manipulation after being caught in an experimental spacecraft explosion. You can create and manipulate low explosives (pyrotechnics) or high explosives (TNT), as well as being immune to explosions. Your strongest explosion is enough to level a house. But it can be physically draining to use for extended periods of time.

How would you use this ability?

The ability to project energy orbs from one’s hands at the opponents that blown up explosive colourful confetti in their faces.

What do you think of this super power I made up?

Who would win in a fight someone with fire manipulation or someone with explosion manipulation?

How powerful is explosion manipulation and what would be the strongest form?

I have a character who can matter state shift into 4 different kinds of elements. I’ve 2 done, but I want the two other elements to match the ones I got down.

Solid - Plant

Liquid - ?

Gas - ?

Plasma - Explosion