The List

Legendary Creature — Human Wizard

Flying
Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead.

Kess, Dissident Mage

Commandant

This is the actual decklist that I own.
Draft the Commanders first from a special pool (in the sideboard) with 4 packs of 10 or 12.
Each commander has partner. If you want to use one of the companions, you can do that as well if you abide by the companion rules and color identity rules. For Umori specifically, you may still have creatures as your commanders as long as the rest of the deck follows its companion rules.
I suggest choosing your commanders (and sometimes a companion) before you've drafted from the main pool. 
Each player automatically gets a command tower and an arcane signet.
Before drafting, players can decide if they want to draft 60 card commander decks or full-sized 100 card decks.
Draft 4 packs of 14 for 60 card decks and 6 or 7 packs of 14 for 100 card decks.
Color Identity does not matter when it comes to lands.
Draft Archetypes:
Reanimator
Cast spell, get value
Freecasting
Theft
Copying spells
Value for targeting your own creatures

(The Real) Budget Spellslinger Commander Cube

Draft the Commanders 1st from a special pool with 4 packs of 10 or 12 (This is that pool).
Choose your commander before or after you've drafted from the main pool. 
Main pool: https://manytcg.com/decks/cmggmq7en0001jo04ahw49ec6)
Each commander has partner. If you want to use one of the companions, you can do that as well if you abide by the companion and color identity rules.
Each player automatically gets a command tower and an arcane signet.
Before drafting, players can decide if they want to draft 60 card commander decks or full-sized 100 card decks.
Color Identity does not matter when it comes to lands.



Commanders for drafting the spellslinger budget commander cube

Zevlor Méchant

Here are is the real list of commanders for the cube!

Real Spellslinger Commander Cube Commanders

This deck is a fever dream. Wake up! You're dreaming...and have a fever.

Cormela, My Beloved

Trust me, this is group hug
I'm not here to win; I'm here to send a message.

Kess, Dissident Mage

Rules Text

Card Facts

Legality

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Decks using this card