mtg cards like dark ritual Proxy – Liquid Luck Make our power tears of night. The Most Valuable Dark Ritual

If you want to be really mean, you can also try out OverburdenOverburden and SunderSunder

There is also a sub-reanimator theme that plays into Zombies, as you create Zombie tokens of cards that you're discarding

At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.) Legendary Creature - Human Monk Counterspell (CTRL to add secondary) Creature Mudslide Creatures without flying don't untap during their controllers' untap steps

I also find it an awkard downside that Invasion of Ikoria specifies non-Human

A two-card combo like Dina, Soul Steeper and Exquisite Blood is very efficient