In a totally unrelated topic, how does one say "Die!" in Japanese, where the implied 'you' is 'you fucking bastard' or something along those lines? "I'm going to rip your heart out" would be an acceptable alternate, or "I'm going to skin you alive," or even just "I'm going to kill you." But all very rude and abrupt.
The version I've heard in anime was always 'Shine!', which is the plain version of the imperative form of the verb 'shinu', to die.

I suspect that there are stronger forms of the same sentiment, but I don't know what they might be... IMHO, saying it the simplest way and letting tone of voice do the rest would be on-target for Sasuke's voice, and Duo and Faith would both say it in English...

*blink* Unless Faith did say it, and Duo's trying to translate...

Hm. If nobody else comes through for you, I can pass the question on to a lady I know who works for a subtitling company.

*bustles away to research* Okay, working off of this site (http://tvtropes.org/pmwiki/pmwiki.php/Main/JapanesePronouns) and my own memory of Gundam Wing, you might well want 'Onore wo korosu'... I can see Duo saying that, honestly, simultaneously playing off of Heero's version of flirting and being absolutely dead serious.

Ja, -n