This is an unpowered legacy cube looking to encourage playing three colors.

Jund: Aristicrats

• Riveteers Ascendancy
• Sprouting Thrinax
• Korvold, Fae-Cursed King
• Ziatora, the Incinerator

Esper: Artifacts

• Thopter Foundry
• Dakkon, Shadow Slayer
• Sydri, Galvanic Genius
• Sharuum the Hegemon

Naya: Lands Matter

• Zacama, Primal Calamity
• Obuun, Mul Daya Ancestor
• Trace of Abundance
• Knotvine Mystic

Grixis: Storm

• Cecily, Haunted
• Cormela, Glamour Thief
• Jeleva, Nephalia's Scourge
• Kess Dissidant Mage

Bant: Blink

• Derevi, Emperyal Tactician
• Lagrella, the Magpie
• Chulane, Teller of Tales
• Roon of the Hidden Realm

Jeskai: Control

• Soulfire Grand Master
• Mythos of Vadrok
• Narset of the Ancient Way
• Inspired Ultimatum

Mardu: Aggro

• Kelsien, the Plague
• Queen Marchesa
• Snapdax, Apex of the Hunt
• Zurgo Helmsmasher

Sultai: Counters

• Zaxara, the Exemplary
• The Mimeoplasm
• Volrath, the Shapestealer
• Vorosh, the Hunter

Abzan: Reanimator

• Tayam, Luminous Enigma
• Nethroi, Apex of Death
• Teneb, the Harvester
• Karador, Ghost Chieftain

Temur: Midrange

• Rattleclaw Mystic
• Animar, Soul of Elements
• Sarkhan Unbroken
• Maelstrom Wanderer