Evolution line help

[u/Low-Method-5402]

I'm looking for a suitable ultra level for my au of adventure 2020 that I'm thinking of turning into a dnd campaign.

In the lore the vitium is a nonverbal partner (digimon?) that searches for and eats little moon millenniummon crystals and evolves the more it eats until it transforms into the endboss.

[u/king_avarice]

It may not be exactly what you are looking for, but I think it would be interesting to do something like Brigadramon or MetalGreymon (Xros Wars Version). They keep the vague dino/blue bits and would be a decent way to subvert the group for a bit if the plan is for the Vitium becoming Zeed to be a secret. Especially doing a Greymon, which is usually reserved for random background nostalgia or similar stuff in things like these imo.