Since you can only get most of the crests only once(mission rewards/newsletter) and you can't get the accessory back from Bechamel, i thought that it would be a good idea to add the crests(mission crests and the newsletter proto crest) to brinks, so you can get more than one per account. This doesn't include the prizebox crests, because you can get a lot of them. I thought about a possible price of 10-40 primal sparks for the crests and the crests become available after completing the mission(so you need to complete the 4-1 mission to buy stunning crests)
Sell crest accessory for tokens
Why not for the Cobalt and Azure guardian crests ? you can get them only once, and the game could check if you cleared the mission. Everyone can get only 1 proto crest, so it wouldn't be a special thing
+1 for all non cobalt line or the proto crests.
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Since the Proto-Crest is only newsletter available, I've been thinking about it. How about make it worth more than 100 tokens, to say how rare it is. It would come on as bound, ans would only be sellable to a vendor for... 1 x 10^(insert exponent).
Then, I'd plus one all other crests besides Cobalt and Azure Guardian.
Ok, they could be bound to the player like every token item. I have the proto crest, and the newsletter option is still there, so it's common. I don't know why you don't want Cobalt or Azure Guardian crests, brinks could sell them after you completed the mission, or after the gate in hall of heroes
Um... No, about the Proto Crest. It's only for those who signed up for the newsletter, like the test server. A little dough for a little sneaky-peeky.
Otherwise, I'd +1 for the other crests other than Cobalt - Azure Guardian Crests.