mtg vivien cards War of the Spark Rare Vivien, Champion of the Wilds #180 or creature with flying Magic the Gathering set boosters

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

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

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

That means there was going to be some crazy foreshortening, which can be really hard when you are just trying to paint it from imagination

Similarly, cards like Teferis Protection (34,379 decks on EDHREC) and Heroic Intervention (54,217 decks) turn most advantages you might gain into more advantage for them

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