Im a big fan of Fell Stinger, a card I play in most of my creature-heavy black decks for the card draw, but the fact that its also a Zombie makes it even better in this deck
This is a really neat design and will make for an interesting choice any time you use this ability
If you want to play within the Modern meta on a budget, look to Temur Prowess at around $400, is among similarly-priced decks that exist just under the top-tier decks
We can play them as lands if we keep drawing nonland cards, or keep them in reserve if we get flooded on mana
First was this card: While technically this can be clumped in the "+1/+1 as growth effect" category, I felt it was worthy to point out that this is the first "ooze," that is the first creature that grew not because of an effect but because of the passage of time
And its heat index is likely to be pretty low given its cost and fluctuating ability