I was reading this article on [[Doctor Doom, Unrivaled]] when looking for inspiration on my Doomsday pile. https://mtgrocks.com/mtg-doctor-doom-unrivaled/
Copying the relevant text below. If I have two cards left in my library, tap Doom, then sac him to [[Village Rites]] or [[Corrupted Conviction]] does his ability still resolve?
Doctor Doom also offers Doomsday combos. You only need two cards to start this, but you will need some specific cards in your 99 to pull off the win. With just three extra mana and a way to draw a card, you can win the game by using [Street Wraith](https://partn