Quick question. Archer's vessel power is projecting weapons from his magical storehouse of angst. Could one of projected weapons be given to someone else than his god? The other Cu Chulainn, Berserker, is currently shinkiless, but Archer would figure fighter like this would be a big advantage on their side. If he had a chance and it was possible he'd project a weapon Berserker could use for the duration of the boss fight.

To my understanding a weapon like this could maybe wound ayakashi, but not rend it (that's reserved for his god only), but since it's a raid boss fight and everyone are chipping at the health bar, the lack of rend isn't that important.