None of his fire spells are working. Range shouldn't be an issue, he had ways to handle that ordinarily, but right now.. nothing. Strange. As SecUnit fails to go where Agni wants it, the demon's pursuit is almost leisurely as he works out what to do about this annoying lack of ranged firepower of his own. There's no doubt all that energy fire must be doing something, just not enough to dissuade him.

Raw speed isn't in his skillset. Not yet. "I can do this all day," the demon rumbles, energy splashing across sharkteeth and eyeless face of one head. "How long can you?"

'All day' is definitely an exaggeration. There's another option he's weighing. SecUnit was very defensive of 'its humans' .. if he can't get at SecUnit, he can probably get at them. He wouldn't even have to hurt them. He'd just have to make a credible threat to lure it into his reach.

The red and gold gorillaish demon turns, not to pursue SecUnit, but for the Convoy proper. It's not super close, not with the gas station full of cars and trucks and a random mechanical horse between them, but his trajectory clearly isn't the ruined vehicles waiting for their potential owners.