Compared to the Gauntlets of the black 15ac 4str 3wis, you are really just trading off one strength and some ac for all the other stats. It really depends on what you think is more important. Do you need those extra 4ac and 1str? Especially when it's replaced by 5mana, 1dex, 3hp, 1svDisease? Aside from the look, which I'm not quite certain about just yet, it's not a bad trade to Gauntlets of the Black, imho.