This deck is sick af

Okay that's pretty sweet, actually

What am I equipping my Delver of Secrets with in this format?

I'm probably very easy tbh

Shigeki, Jukai Visionary is basically a Seasons's Past you can Worldly Tutor for!

Everything makes sense if your entire worldview is that when bad things happen to others it’s their fault and when something bad happens to me it’s part of a global conspiracy.

I don't think their utility is particularly relevant. There are lots of useful things that probably shouldn't exist. (Amazon's 2-day delivery, for example)
I'm sure someone with drastically different expectations and needs could find themselves in a situation in which LLM output seems useful to them