2 Deep-Cavern Bat Steal Your Opponent's Best Cards Deep-Cavern Bat is a very simple card with a simple effect, but just because it's simple doesn't mean it's bad
Since you're in mono black, permanents like Bontu's Monument and The Darkness Crystal make it even easier to cast spells, allowing you to hold mana up for interaction
It allows you to get the colors you need, and as an extra benefit, you gain 1 life
It felt a bit rushed to many of us, and the Web-slinging mechanic didnt quite stick
Meren also lets you loop powerful enter the battlefield effects, or death triggers by repeatedly reanimating and then sacrificing your creatures
Lets experiment: Creatures (13) Lands (22) Spells (25) I fear that even with this many fixers, the mana may come out too clunky