The card draw comes from Grim Haruspex and Midnight Reaper, which play extremely well with Verminister since you sacrifice multiple nontoken creatures at once
The games 2nd printing helped a little
I also appreciate that the two commanders, Tidus, Yuna's Guardian and Yuna, Grand Summoner are both powerful and support the new summon sagas from the set without being so oppressively strong that all deckbuilding choices warp around them
Monoxa, Midway Manager If you're bored of having a consistent performance and want to rely on chaos, Monoxa, Midway Manager is a halfway decent dice-roll commander
Vannifar can cloak cards from hand, which can be very mana-efficient with expensive creatures if youre packing ways to flip them over, which this deck does
Witness the brilliance of Xanathar's machinations as it fires its charm ray, sleep ray, slowing ray, petrification ray, and fear ray towards its helpless and hapless foes