[Perdition]

The issue is the bonuses being tied solely to the back is why it's trash now. Old Turtle Shell applied to literally every direction, but halving the effect for the sides and then having it be normal for the back should be fine. By having it apply to the back only, people will just attack your sides and now your 10 star item is useless. It's also really easy to attack specific sides of a character with all the options to both move and attack, or low momentum movement. And against VAs which are really the only class that wants to backstab, frankly, turtle shell doesn't do anything.