Karumonix.

Karumonix is a 100-card Commander deck led by Karumonix, the Rat King in the mono-black color identity. TableCommander estimates this deck at bracket 3 — upgraded / mid-power.

The mainboard runs 35 creatures, 12 instants, 7 sorceries, 6 artifacts, 4 enchantments, and 36 lands, averaging 2.78 mana value across non-land cards. 77% of non-land cards cost 3 mana or less; 19% cost 5 or more.

Notable inclusions: 1 game changer (Ancient Tomb), 2 fast mana (Cabal Ritual and Dark Ritual), and 1 tutor (Ratcatcher). This deck is currently Commander-legal on TableCommander.