Newest character is Hadissen, a Naga from a mining, coastal town on the fan-plane of Moloni. He used to be a rescuer, until he was presumed dead during an intervention where he couldn’t both get people out and himself out. Of course, we all know how those things end up for potential planeswalkers.
His signature magic is the ability to harmlessly transforming up to one “entity” and himself into another state of matter (solid, liquid, gas, plasma, mixes...) and somewhat guide them when they aren’t solid. An “entity” is roughly defined as “what’s convenient”, but basically consider a person and their clothes, or a single object, or a pool of fluid...
He’s generally a pretty upbeat person, and is currently looking throughout the Multiverse for a place to call his home, since he saw a few planeswalkers at peace after having found somewhere that fit them, and he never found that exploring Moloni.