Here's the thing. Crimson's Shield buff either from his standard, and and the super stone fist both only generate 20% shield buff and like I stated earlier, the shield is based on his Resistance which is quit low. IMO, this move was done to make Crimson's Lvl 80 Mystery look like useful. With the current meta of AOE attacks, those 20% shiled buffs become useless. Hell, even in non AOE teams, those shields rarely last for more than 1 and 2 rounds.