This champ should have endless devotion or gain the race Jakei. Everything about it fits the theme. A mutated Jakei that got it from the power of the C'ramil.
Race Jakei would make more sense, It is a Jakei Shard Master that something bad happened to her in training.
I doubt a crystal Jakei works. Fluff: they'd be super loyal to themselves. Mechanics: it trivialize the crystal Jakei interactions by making one unit that counts as both. That said if Sokolov is up to doing it I'm game.