A crappy one.
Skin of Ventus [1]
Lucifer's skin, cursed by devil's language. It seems threw on the back.
MDEF + 2, Maximum HP + 200, Flee Rate + 10
I'd dare say 7-27m
vs.
Diabolus Manteau [1]
Reduces Neutral Property damage by 5%. Maximum HP + 100
Increases Physical Damage when facing Satan Morroc by 10%.
[+ Diablos Boots]
Maximum HP + 6%
probably 60-100m pending supply & demand.
Nydhorgg's Shadow Garb [1]
Add a 7% resistance to all Elements.
Increases SP by Level/3 + (Refine Rate * 10).
When dealing physical damage there's a 1% chance that you'll recover 1% of your damage as SP.
MDEF + 3
imho Skin of Ventus is 20-35m with 27-30m seemingly the "optimum" market price
red minstrel is 60-80m, perhaps even a bit more if there are enough demands from aspiring new champs.
bloody eaters are rarely traded, but imho it's worth 1-2m at most.
AK cards are 60-80m imho.
Li Me Mang Ryang Card hmm 500k-2m at most
Gig Card urgh 50-200k if it isnt a hatter
Green Iguana Card meh 50-200k if it isnt hatter
Megalodon Card quite sure its a hatter
Dragon Egg Card again, 50-200k if it isnt hatter
Vitata Card 5-8m
Anopheles Card 50-200k if it isnt hatter
berserk[1] is rare. Even when there were berserk[0] flying around the market no one seems to even bother to try slotting them.
IF we assume an unslotted one is 4m (the last one i saw was about 1-2 yrs ago, so considering the amount of inflation the server has experienced, imho 6-ish is a better guess), it's 500k and ori at 20% iirc, but let's negate the cost and just say that 5 times the unslotted price seems about right... so 20-30m