1 thing might be good: the Flames of Invincibility
And maybe if it gives COV for the whole clan, but the Victories of Paagrio is different than COV (id say worse)
(if u think this is good for debuffs, then u gotta remember, he needs to go pretty close to apply debuffs, and then the longer the game goes, ppl will have even stronger resists. Hint: swordsinger lvl 80 song )