LOTM: String Theory S2 P17/Transcript

(Omega is seen with Charlie outside along with Alex and Izuku)

Charlie: So, you're saying that I still have one final move to unlock?

Omega: If I'm right, yes. It'll allow you to spray poisonous fumes at your enemies.

Charlie: Poison?

Omega: It's not deadly...at first. But it's useful for crippling your opponents easily.

Charlie: So, you're saying that I'll be able to spray poison and knock people down?

Omega: In simple terms, yes.

Alex: I mean you don't have to use the poison you know, you've got other fumes inside of you that are just as effective. Izuku here sure knows a thing or two about that.