I don't see how that's better at all. Black Feather is not only geared towards SCs, but it lacks all the things that Circlet of Phoenix does, that overtly benefit a RK type char. 10% HP, 15 MDEF, and variable casting delay decrease, all are favorable towards RKs, where while 50 more to hit is nice for most melee physical jobs, is very wasteful on RKs, since alot of their skills from Knight/LK jobs give them plenty of Hit bonuses.
Also Black Ribbon is very specifically designed for agi RK(for people wanting to make a odd build for RKs), not Vit Knights, and is nowhere near the same lv of gear(it just converts agi to atk, very nice for people wanting to be unique with their RK, but that's it.. However even then, with a agi RK build, you probally would be better with the Black Feather. not only the dypass Def make up for the atk conversion of agi, but a agi RK build really would need all the Hit they can get, as they won't be using skills primarily.
black feather have sp/kill, CoP do not
you can put extra hit and dex from black feather to vit/stat of ur liking
the bonus dex from black feather already cover the variable casting delay from cop
no, black ribbon is for ignition break RK, is not linked in any way to stat. its not odd build, its the entry-level meta for ignition break. maybe you're seeing the wrong item? black ribbon does not have any link to agi, its per str

you can be str(optimal)/agi/vit/luk/dex whatever RK and use black ribbon if the skill you're using is ignition break.
no im not agi RK, im physical RK
and trust me i have tried all the possible combination and tried all physical RK equipment, including CoP and Black Feather
mind you that build nowadays revolves on skills, not stat;
Ignition break- Bowling bash- Brandish Spear RK
Brandih Spear- Hundred Spear RK
Dragon Breath RK
Ignition break- Critical RK
with black feather, you dont need to switch CoP - CVB back and forth
Edited by Essmikayl, 10 September 2022 - 04:08 AM.