It's come to my attention that Gremlins are one of the few monster classes in the game that aren't represented in Knights armor. Some examples of monsters represented in armor are: Chromalisks, who are represented by Virulusk, Arcane/Volcanic Salamander; Wolvers by Vog Cub/Skolver/Snarbolax; and Jellies by Royal Jelly/Ice Queen. Some monsters are even represented by Costume, such as Trojans with the Trojan Disguise, Gunpuppies with the Love Puppy Disguise, and even Mewkats with the Spookat Mask. Sure some monsters like Lumbers and Devilites lack representation, but Gremlins, as far as the story goes, stand out more than these monsters. Gremlins play an important role in a lot of the games history.

So if there were armor to be made representing Gremlins, it could become part of the Cobalt path. But why Cobalt? Well from what I have noticed, the 5* Cobalt paths represent in-game clans: Azure Guardian representing the Spiral Order and Almirian Crusader representing, of course, Almire. And since the Cobalt Alchemy Path lacks an Elemental set, this Gremlin armor would suffice. Gremlins are resistant to Elemental damage, so it would make perfect sense to have this armor resistant to Elemental damage.

I don't know if OOO is intending to add new armors anytime soon, but if they are, well here's an idea of something they can make.