I had heard grumblings that on TLPs, Ferocity didn't affect Bards until a certain expansion due to the AA nature of Bard Double Attack. I did some light testing. Maybe I'm the only one who was even concerned, and this was a waste of time. TL;DR: Ferocity seems to be working as expected on Bards This is during DoN era with a level 70 Bard and all relevant AAs (Burst of Power 5 - 15% chance to Double attack). Ferocity V lists a Double attack increase of an additional 15%. 15% of 15% is 2.25%, so I'd expect a 2.25 percentage point increase on double attack rate. The item I tested with was Shoulderpads of Warfare. First a baseline without them equipped, then a parse with them equipped. The parses were ~20minutes each because there are no parse dummies so I couldn't just afk overnight for a consistent long duration parse. I equipped a Rusty Short Sword (28 delay) and my only buff was Symphony of Battle. With OH AAs, I was at 208 haste, for an effective delay of just over 1.3 seconds. Offhand held a drum to eliminate dual wields. Parse target was a 70 druid using /duel. Druid facing away from Bard throughout parse. Without Ferocity: Double Attack rate of 12.9% Total Attacks: 1162 Double Attacks: 150 Double Attack Rate: 0.12908777969018934 Ferocity V: Double Attack rate of 15.3% Total Attacks: 1035 Double Attacks: 159 Double Attack Rate: 0.1536231884057971 These are fairly small sample sizes, but I think it shows a statistically significant difference. In both cases, the rate is slightly below what I'd expect since it should be a base of 15% (according to the AA description). This could be due to the parser being consistent, but not 100% accurate. I hacked the parser together in a few minutes just to test Double Attack rate, so it's not been thoroughly vetted or anything. The code is here: DoubleAttackParser/Parser.html at main · Trebla7th/DoubleAttackParser (github.com) I can post the full parses if anyone is really interested, but since the data doesn't show anything aberrant, I don't see a point.