Teen Titans, Season 3

Robin:
Thanks for your help, X. But don't think that means you can help yourself.

Red X:
No problem, kid. This [holds up the Xenothium] should keep me going for quite a while.

Robin:
That won't do you much good without this. [He holds up the utility belt. Shocked, Red X looks down and sees his belt isn't on him]

Robin:
Better luck next time.

[Red X backs up to the ledge and almost slips]

Red X:
Not bad, kid. Not bad.

[He throws the Xenothium on the floor, exploding it and jumps and falls]