This cube is designed around the original Khans of Tarkir clans and pulls multiple enablers and payoffs from the older era of Standard as well as the new era of Modern magic as supplements to the archetypes.
Abzan Counters: Outlast, Endures, and +1/+1 counters
Jeskai Prowess: Burn, Prowess, and Instants/Sorceries matter
Sultai Delve: Self Mill, Delve, and Zombies
Mardu Warriors: Anthems, Tribal, and Warrior matters
Abzan Toughness: Lifegain, Activated Abilities, and Toughness Matters
Jeskai Control: Counter Magic, Board Wipes, and Planeswalkers
Sultai Morph: Manifest, Mega-Morph, and Morph matters
Mardu Tokens: Tokens, Mobolize, and Sacrifice