Description
Increases the damage done by your off-hand weapon by 5/10/15/20/25%.
Position confidence
row: Confirmed (talentsforever.com JSON + foreverchanges.pro tier listing); column & arrow: Reported (explicit only in talentsforever.com data/rogue.json)
Change notes
Classic: 10% per rank (up to 50%). Ranks 1 and 5 read.