Midnight Reaper A key card draw engine for Teysa Karlov style aristocrats decks as well as Wilhelt, the Rotcleaver zombie decks, there are only so many cards that do what Midnight Reaper does, so this is a must have for a ton of black decks
"Timelord" monsters rely on attacking for their effects to activate, so any number of basic stall cards that aim to block the opponent's attacks will stop them as well, including battle position changers
Untapping any permanent has a dazzling array of uses, from netting you extra card draw with The One Ring to setting up combos with Gaeas Cradle and friends
By detaching a material when an opponent declares an attack, Hope Harbinger can redirect the attack to itself
The guild leans heavily in the mill direction, or to decks that want as big a graveyard as possible
Let me know in the comments or over on Discord if you plan to build around one of the cards on the list, or if youre excited to draft some frogs, squirrels, or bunnies, and make your opponent drown in a flood of fluffy tokens