Nobody is zeroing in on you specifically, at least not yet
Among the best Vampire Commanders MTG , this one wins through pressure, not flash perfect for mono-black aggro players
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
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
Lets experiment: Creatures (13) Lands (22) Spells (25) I fear that even with this many fixers, the mana may come out too clunky
Meren also lets you loop powerful enter the battlefield effects, or death triggers by repeatedly reanimating and then sacrificing your creatures