Increases your critical hit bonus – i.e. crits do more bonus damage than normal hits. This is a weak stat with weak gear, and gets much better as your crit and gear increase in strength. It is also better for PvP since burst damage is important when it comes to taking out enemy players.
- Patch 1.1.3: Surge rating has been re-balanced. It now reaches diminishing returns the same way as other damage ratings, and its per point damage contribution has been reduced by approximately 10%.