I have both immune valk mant dev mant. They are like pretty much dmg on reflect by asura! or even accult IMO I think Getting DEV is the best IDEA. since if you fighting champ u dun use immune, u use marse switch to dev when they about to asura. or even during woe you wearing GTB or maya i think immune is not neccesary. if you dueling BIO you wearing DEV. if you dueling LK you wearing hode exept at woe need to be fast switching to immune. hmm what else!