They should just add a skill that lets you "evade the targets next attack" with a 100% activation rate. Then pairing that up with simian thrash would be much easier, and because we have that potency increase, makes it useful.

I don't mind the counter type skills, it applies some form of strategy where players have to watch the flow of battle to initiate specific skills. I'm not sure if it already does this or not, but does simian thrash light up in the action bar when you've met the requirement(Evade)?