Reality Warping
This is a surprisingly common trope;
Mister Mxyzptlk (Superman), Discord (My Little Pony), Mad Jim Jaspers (Marvel), Thanos with Infinity Gauntlet (Marvel Avengers), and Genie (Aladdin) just to name a few.
Virtually everything previously said in this blog; they can do and more.
They are so magical that they can avoid damage entirely; either by magically reviving themselves or rendering their enemy unable to fight with just a thought.
They might as well be gods…