Form contracts with magical beings in the hopes of getting a wish granted? Have wish-granting thing require you to kill people?

And he doesn't even die for real if he loses, let alone get shunted down into what is basically the depths of Hell.

WALK IN THE PARK

although he won't be so chill if/when Masters start getting offed

or if he winds up taking someone out

possibly by accident

shhhh Inventrix stop talking to yourself