General

@appall: Von Bon no longer makes any sound effects during his jump attacks, which makes it pretty hard for mages with no flash jump, and slow casting speeds =/

Oh man, why are you doing from left to right?
That's ok when you do them on a daily basis (convenience sake), but if you're going to try them 1 by 1 until they all become a number as they fall, you should do the traditional/storyline order of:
Chicken->Clown->Queen->Dragon
Unless difficulty for you just HAPPENS to begin with Queen and end with Dragon, which falls along the lines of
Queen->Clown->Chicken->Dragon
Like the portals are from left to right.
If I was strong enough to do all 4 with practice, I'd start with Chicken, follow up with Clown, do Queen third, and finish up with Vellum.
Just like during the questline
I can probably do CPierre if I practice, since I saw an Evan with more or less the same range, post a solo video for CPierre

Von bon is easier than cvell by far

Cvell should be easier than Von Bon as a Kanna since you can ignore Vellum's rock stun.
With your teleport having such a massive horizontal range (you even have 2) and being able to ignore the stun, you shouldn't have ANY trouble facing it unless you don't have enough damage of course.

@duckymucky
Cvell is only unpredictable if you're going in with multiple people.
At that point, you just blame them

I found von bon as the easiest of the 4, as its just predictable moves over and over again. Clown I would just duo- too hard to solo x_x. Cvell is a whole different story...too unpredictable.

I am unable to add a new thread, my player won't get added after I tried adding him. But I have a question. So I am thinking of starting a kanna (op revamp), I'm in Scania btw. Who are the pro Kannas in Scania that I can ask for help or tips? Thanks really appreciate it!

Every time i do cvb i get him down the last speck then i die from the dropping ball -.-

@itoldyounoob: I agree with this! I find the first 3 bosses quite easy and equal with each having their annoying traits.
Pierre - hat luck
Queen - Zombify + fire
Von Bon - White clocks (don't affect people with high damage though!)

However, difficulty spike and spike in range/Pdr needed to kill Cvell.

@yearn pet potion doesnt help cvell at all since you'll get one shot by everything anyways (unless you're a paladin).
I'd probably say Queen -> Chicken -> Clown -> Vellum is order of difficulty from left to right. Cvel's easy when you've gotten use to the game, but there's constant positioning aspect and timing. Clown's easy but it's also easy to screw over yourself and get caught in hats.

@yearn: As a mechanic you have stance. Imagine green gas knock back + spawning tails. Also the randomness of getting hit by a spike when rushing to the opposite side of breath. I can't believe this is even an argument.

@wall: Well you are doing somethinng wrong. Von bons attacks are a preset pattern of you haven't noticed and are entirely predictable, and even if they weren't he makes a very easily audible noise that allows you to know when to jump. And sure its luck based but not by no means any bit "hard", even with bad hat luck, as a MM, one of the classes with the lowest hits per second and most restricting cap, I always finish with at least 10 mins left.. You need very little damage to kill Pierre due to the double damage effect of opposite hat. The ONLY class that can make an argument on pierre would be classes like NL with stars that can heal other color uncontrollably, but even recently they became toggle skills. Pierre is so easy I can do him on my NL with 1.1m range 180% boss. I can't do the rest on my NL though.

@appall: for MOST classes, clown has the most annoying mechanic. vellum is literally a cakewalk especially with pet+potion pot. mechanics have literally NOTHING to do with hp or pdr.

@wall: Ohhh, well (s)he should have used -> rather than a greater-than symbol

@yearn: That has to be the biggest lie ever. Clown is by far the easiest, I was soloing clown since the implementation of CRA. Chaos vellum has the hardest mechanics, most HP with most Pdr, and the least amount of time available since half of the battle he is underground or surrounded by tails.

@yearn: So you're saying queen is harder than vel?

difficulty spike goes from queen>vellum>chicken>clown tbh

Congrats! However, the difficulty spike from the rest of CRA to Cvell is crazy! Don't expect to be capable of beating him just cause you can solo the other 3.