My medium from PF1e uses harrow-themed masks for their spirits, kind of like Majora's Mask.
So whenever he wants to warlock it up and start raising the skeletons from the dead, he throws on the Queen Mother mask and slowly shifts into a regal fomorion as influence builds. Whenever its time for crimes like larceny and extortion, The Crows goes on and he progressively becomes a weird birdman. The Cyclone goes on when its time to throw hands, becoming more like an aerial elemental, etc etc. Twelve masks total makes for a fun and visually dynamic character.