"But maybe soul-gathering is a prerequisite?"
Why????

"It's usually a prerequisite, so!"

"I can change that!" the Mamba announces before summoning a dirk. Like, a tiny one. Probably one for, like...someone with tiny hands. He doesn't have tiny hands.

"Yeah!" A moment later, a dirk big enough to be a boat if it were...more like a boat in characteristics, crashes down into the ground near them and splinters the earth enough to continue sticking in it as if a sheathed knife.
...okay.

(You choose )

"Yeah!" the Mamba responds.
You can??? If you can, then why'd the Jackal need the Hyena??? 
But then he lifts an arm--too quickly--and then the dirk just flies into the air like some especially lethal boomerang. 

The dirk stays in the air for a while. And then it shoots down, much faster than the Mamba brought it up. There's barely even any time to register the fact. 
Uh oh.
A brief moment passes before the Mamba's face registers the emotion: Panic. "RUN!!" he shrieks, but for some reason it's suddenly like neither of them can move. Well, that's not good.

The Mamba points frantically at the dirk and makes a firing gesture, barely even taking the time to aim. Somehow, though, he manages to somewhat hit the mark. A large grayish green ray launches from the point of the finger, the contrast large enough to nearly launch himself back if not for the fact his movements are restricted at the moment, so instead it's more of an induced shudder. In any case, the ray shears through the blade of the dirk, causing it to boomerang in the other direction. The rest of the ray that didn't hit any mark just goes right through a building. There are audible screams.

Well, yay, the boomerang dirk is still in the process of going into the building instead of at the two Masked Ones' faces. 

The Mamba technically wouldn't care either, but right now, he's pointing at the dirk frantically. "STOP! STOP!" he yells. "YOU'RE GONNA DESTROY THAT!"

The Mamba ignores that, starting to run towards the building as fast as he can. It's kind of like watching a snake tied up in a knot trying to wriggle off. 

I think this was supposed to be a restaurant thread. What the heck? 
The Mamba tries to fly, but snakes aren't actually meant to fly. He makes it 3 meters off the ground before he falls back down onto his face. Can't say he didn't deserve that.
Congratulations, the A.A. says dryly from behind the Cheetah.

Away. The A.A. surveys the situation and the partially plowed-through building without saying anything else.

The A.A. finds that obvious and doesn't respond. They instead stalk up to the Mamba, or whatever action on their part resembles the stalking motion by humanoid creatures. 
Up, they order. 
The Mamba is highkey wincing on the floor.

No, the A.A. responds curtly, which doesn't actually mean they don't have candy; it just means that they're not falling for whatever candy-grubbing scheme this is.

Snake boy just flinches. The A.A., as per most cases, doesn't respond.