If you haven't noticed, monoblack can revolve a lot around using your own life as a resource, so I highly suggest playing cards such as Exquisite Blood and Gray Merchant of Asphodel to gain some of that resource back
Card Name Type Legendary Creature Angel Nightmare Avatar Rarity Mythic Rare rules Text Flying Super Nova - As this creature transforms into Sephiroth, One-Winged Angel, you get an emblem with "Whenever a creature dies, target opponent loses 1 life and you gain 1 life."Whenever Sephiroth attacks, you may sacrifice any number of other creatures
Basically, Thantis, the Warweaver wants to lead a deck built around forcing your opponents to attack for value
This ability showcases Ursulas insatiable thirst for power and her ability to siphon it from others
This red commander pays for itself in a turn cycle or two, and letting an opponent pick which spell you can't cast leads to interesting political discussions
You can choose to sacrifice zero permanents