I think it would be cool if there was an assist/tagging system, but that might be hard to code. Like, whoever did damage or assisted in someone's death, gets reflected in PvP YT.
I'd bet 75% of yt would look like this:
<Guy> of <Guild> has been slain in Sebilis by <Soandso>, <Soandso2>, and <Soandso3>
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