End Game Slaughter Moves

[CUnknown]

I think it is something you should state beforehand (just so there is no confusion, even though its true that everyone agrees already), that Mists of Deception is illegal when combined with killing spells like that, I have been stating this with games I host as a house rule.

If this happened in one of those games, I would use the master password to set the offending player to AI.