Need items ? Full rejuvie potions ?

[Obi2Kenobi]

First off, Thorns isn't a possible aura. The only ones are:
Might, Fanatacism, Holy Freeze, Holy Fire, Holy Shock, Conviction, and Blessed Aim.
Also, as it is listed as "Aura Enchanted", you can only have one aura per boss pack.

Oblivion Knights are treated as Champions for some calculations in the game, so I don't think they could be ressurected. I'm not sure on this one, however.