Yu Yu Hakusho1992

Genkai:
[speaking through Puu] You will never let this old woman have some peace and quiet, will you, Yusuke?

Kazuma Kuwabara:
Genkai's come back to life and she looks exactly like Puu.

Genkai:
Toguro, you want to see Yusuke's real power come to the surface? I'll tell you how. He's very predictable. The only thing you have to do is kill one of his friends. And make sure he's watching.

Yusuke Urameshi:
Genkai, what the Hell's the matter with you?

Genkai:
Yusuke has a six foot wall of crap between him and his actual emotions, and that's where his power resides. To break through that wall you have to do something drastic, like killing someone he really cares for.

Yusuke Urameshi:
Dying must have ruined your heart, Genkai.

Genkai:
Open your childish eyes, dimwit. If you don't stop Toguro, everyone in this stadium dies and, damn it, if the life of one friend is what it takes for you to save the rest of them, then that sacrifice is worth it.

Yusuke Urameshi:
Nooooooooooooooo!