To continue using Khans of Tarkir as an example, each of the five clans has a signature mechanic associated with it: Abzanoutlast, Jeskaiprowess, Sultaidelve, Marduraid, Temurferocious
Whenever a creature deals combat damage to you, that creature's controller gains control of Contested War Zone
A lot of these commanders have some kind of synergy with other cards that are more group slug-ish themselves
Charming Prince
Sorcery Color tag templates(None) Sorcery (CTRL to add secondary) Maybeboard Qty: 2 Price: 0.79 Faerie Seer Flying When this creature enters, scry 2
This card would also go great into a The Queen - Disguised Peddler list, something that never coalesced into a viable deck last set, but with enough high lore cards could one day be a thing