Well since phantoms can steal tons of skills they are supposed to be little bit nerfed versions (like no hyper skill boosts or passive skill boosts or cooldown reduction). I guess most classes don't have any decent skills to steal and some have more than one. And with all the stolen buffs phantom is more of a support than dmg dealer anyways.
Tier up stores are quite nice, though in pixel event tier 4 seemed to be bit low value in comparison to others.
boss entry limits are quite dumb anyways since even after practicing your skills to have guaranteed deathless run you can still dc during it and then it takes whole day to try again. Limit clears not entries.
Well lucid/ursus bombs are bit nasty since you can't prevent them from hitting you without iframes that some classes don't have or atleast can't instantly trigger them. So only way to not die on them is to have party members closeby which isn't always that easy, especially on lucid 1st phase with tons of golems making it bit hard to stack up sometimes. hilla cage is abnormal status so that you can avoid with heroes will and erdas will but their cooldown is so long that it's just once. Would be nice if the bosses didn't have some skills that are unavoidable dmg. For example lucid bombs wouldn't even be that bad if you could cleanse them with the statues for example or get inside some barrier area so you could try it solo if you wanted.
Well when they 1st made kanna on tms and jms it started to be bit game breaking since it's quite a huge boost. Atleast in the beginning most skills didn't hit so many targets so the boost wasn't that much of requirement.
Frenzy was tms idea and the problem with tms stuff is that they have so much broken stuff that it doesn't really matter if they get little bit more broken stuff anymore. But when adapting those to other servers you can easily notice that they are problem. Fury was a quick fix for kanna farming meta which didn't really work out that well and frenzy is completely broken item in the 1st place but they are scared of nerffing it since it was acquired from marvel and philo books which are quite much p2w. Frenzies just make grinding faster but it's not a must for any lvl. They have reached 275 in kms without frenzy,kish or fury. It just takes more time to grind.