Something about this feature makes it feel like it should be a "choose one of the following". If not, a player could apply both Accuracy Bonus and Accuracy Reserve for a single attack, gaining up to +4 to hit. What's your interpretation?
Also, it sounds as though the bonus from Accuracy Reserve accumulates without limit(!) if you continue not moving.
I've reported these as an exploitable issue. I think Accuracy Reserve should either not accumulate (most likely what was intended), or if it does, then at minimum when you use it, the bonus resets to +1 (if you don't move on the turn you use the accumulated bonus). There really should be a cap on how big the bonus becomes, in the latter case, though.
Also, it sounds as though the bonus from Accuracy Reserve accumulates without limit(!) if you continue not moving.
I've reported these as an exploitable issue. I think Accuracy Reserve should either not accumulate (most likely what was intended), or if it does, then at minimum when you use it, the bonus resets to +1 (if you don't move on the turn you use the accumulated bonus). There really should be a cap on how big the bonus becomes, in the latter case, though.