I always thought that the Shadow Magician looked much better than Agunim- so I made this mod.
I made sure to add a mouth for the speaking parts, however. Projectiles changed to a nice purplish color. I hope you enjoy it.

Installation: 
Drop the .png file into
C:\Program Files (x86)\Steam\steamapps\common\Enter the Gungeon\Resources\sprites

If you have never used Mod The Gungeon before, and like to learn how, look at this reddit post. 
https://www.reddit.com/r/ModTheGungeon/comments/ba8zsx/need_help_with_modthegungeon/ekcetvo/

In contrary to popular belief, Mod The Gungeon works just fine with the new update, A Farewell To Arms.
Please read this reddit post for more information if this effects you. (This glitch effect previous users of Mod The Gungeon.) 
https://www.reddit.com/r/ModTheGungeon/comments/bak7ny/crashed_the_game_and_i_have_no_idea_what_im_doing/ekcgxck/