Not moving is never OP.
Bulwark might be powerful vs the AI, but only if the AI is not "aware" of how to counter it.
If the AI can count Jump range, or knows how to use LoS blocking, the Bulwarked mech will just be left behind to die.
As has been pointed out most of the other skills allow you to do things better, and considering the low LoS range in this game, if you are in LoS on a fire support mech (Something that you want standing still and firing as much as possible) you want to move your mech, if your not in LoS then you cant take damage anyhow.
Also, a Forest gives 50% of the benefit that Bulwark does, can be stacked with Evasion and can not be removed.
Wofen
Bulwark might be powerful vs the AI, but only if the AI is not "aware" of how to counter it.
If the AI can count Jump range, or knows how to use LoS blocking, the Bulwarked mech will just be left behind to die.
As has been pointed out most of the other skills allow you to do things better, and considering the low LoS range in this game, if you are in LoS on a fire support mech (Something that you want standing still and firing as much as possible) you want to move your mech, if your not in LoS then you cant take damage anyhow.
Also, a Forest gives 50% of the benefit that Bulwark does, can be stacked with Evasion and can not be removed.
Wofen