Talk:Beerus vs. Sans/@comment-27180367-20170624211010/@comment-5038193-20170624234528

You are spot on everything.

There's a chance that Karma Retribution may not work anyway. All monsters in Undertale use magical based attacks. And KR is a magical attack. And according to what I've seen and heard, characters in Dragon Ball with Godly Ki, like Beerus, are immune to magic.