He twists at the last second to slam feet-first into the roof, then straightens to face his apparent attacker. "If I weren't, you'd be charcoal by now!" That's actually inaccurate for two main reasons - one, Signless just demonstrated. The other is that Ben is not actually that fond of burning people to death.

It is true that Ben wants to know what's up here - it just so happens that he tends toward something of an 'attack first, ask questions (and gloat) later' mentality.

Another fireball swirls into existence in each hand, and he shifts his stance, ready to attack again. "So what's your problem? If you're not looking for a fight, what do you want?"