Ludevic might be one of the "Sub-commanders" they often do, like
Basandra, Battle Seraph in
Kaalia of the Vast's deck. I could see him adding
to the traditional Skaberen
to distinct him from
Gisa and Geralf and represent his mad inspiration/skaberen-as-artist tenancies.
Some classics I could see would be Jodah as non -
(though he was more 5C), Marsil as non -
(though again...), and Urza as non -
(he needed serious help with that side of his Legacy, the least artifact-friendly color, and the only color he's not directly associated with by "Urza's something-or-other", or Word-of-Serra). All three could be creatures, depicting Urza pre-ascension. Non -
and Non -
are kind of eluding me right now... They always add some new figures though with the chaos of 4-color identities having touchstones could help. I suppose Jason Carthalion would be who I'd dredge up for Non -
-- he was a
centered mage, close friends with
-aligned Freyalise, one of the founders of
Kjeldor, and able to tap into the
influence of Tevesh Szat at least enough to use
Icequake. For forsaking
, you want a being that's cold, hard, and dispassionate. Orderly and intellectual in the greatest order, but also selfish and 'natural'. Writing that out I think of the Moon King from
Kubo and the Two Strings and wonder if there wasn't a kami somewhere who'd fit that description. Either that, or perhaps some uber-phyrexian (seeing as
ultimately resisted/rejected core Phyrexian ideology while
, intially a color to resist the hardest with
, fell the farthest.)