And with regard to that plan, I pretty much knew from a player perspective that Xeno would take damage, but that there could have been some small % of something nice, it was in character, and I know that unless it was 300+ damage that Xeno would be fine.
I actually wouldn't have bet on that so much. I briefly thought about entering the pillar fully to disrupt it myself, but decided against it because it would have been incredibly dickish to NOT put in my damage when the group needed me to do so. But honestly, it was a good plan. It's just a pity it didn't pan out, but what can you do. :-/
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Twostuck, Homestuck RPG: http://www.gamefaqs.com/boards/8-gamefaqs-contests/63360266