mtg vivien cards War of the Spark Rare Vivien, Champion of the Wilds #180 up to one target creature gains vigilance and reach Vivien, Monsters' Advocate | Ikoria:

Shirei, Shizos Caretaker Shirei, Shizo's Caretaker puts an interesting spin on reanimation commanders

This turns a board full of Pest and Bat tokens into a massive mana discount for your removal and finishers

I wouldnt play this tutor in every black deck, but Id certainly consider it if I had a bomb like Liliana, Dreadhorde General

On the other hand, this is the archetype where I have the least interest in mediocre battles since random mana/value creatures will struggle to flip them

This allows you to take advantage of potent sacrifice outlets, as Gravecrawler can simply be cast again and again after its sacrificed