Wanting to return to modern but can’t find a deck I like

I used to play Grixis death shadow when it was popular. But I don’t like the current version as much nowadays.

I’m thinking of building mono black necrodominance and I own much of the deck but Sheoldred’s price is too high right now.

I recently saw this other deck and it seems so much fun, but I’m afraid it won’t be really competitive, even for FNM level. May adding a Liliana Last hope for recurring Fulminator mage, but is probably slow.

https://www.mtggoldfish.com/deck/7731957#paper

I own basically all the cards from this deck.

I enjoy grindier matchups. Some value engine is nice, but I don’t really like infinite combos or pure control decks.

Thanks!