Arzakon

[+2]: Arzakon deals 3 damage to any other target.

[−3]: Create a Black Lotus token. (It's a 0 artifact with "⟳, Sacrifice this token: Add three mana of any one color.")

[−7]: Each player shuffles their hand and graveyard into their library, then draws seven cards.

Arzakon can be your commander.