It's almost useless unless your character is full go over physic DPS.
Combo damage is poor.
Hardly any good CC.
Absolutely hard to break average level magic armor except for using source skills, and even it's source skill is a single target damage/aoe effect, which is usually very bad to start a fight with it (look at air skill tree, one of it's source skill can singlehandedly win the fight with 2 turns stun and massive damage on multiple targets).
If your magic amour is break, don't hope much to be alive to suck some blood via physic attack on tactical level, you will be CCed to death.
