If you use item Shieldtronic Shield, it does not absorb any dmg instead causes them to take dmg instead. It can hit from 22k-47k at least from fast testing. Works against melee attacks, doesnt work against casters. Does not work against hunters. Lasts 15seconds on a 1min cd.
So if you use this against a class that hits you fast (like a rogue) he basically kills himself rapidly.