+7.5-15% Weak Spot Damage. Weakspot Kills also ignore Enemy Hit Mass.
Continuously chaining more than 2 attacks gives +2-5% Power. Stacks 10 times.
+0.45-0.6% Critical Chance for each expended round in your weapon (resets on reload).
+70-100% Critical Weak Spot Damage.
Scuffed Meme Build using Off-Meta Weapons on the Hardest Auric Setup (I-II-V-E-G) just for fun and it ended up working ok-ish.