Partner

Can share the command zone with a second commander, giving the deck two color identities to combine. The varieties are Partner Thrasios, Triton Hero, Partner With Brallin, Skyshark Rider, Friends Forever Anara, Wolvid Familiar, Choose a Background Wilson, Refined Grizzly, and Doctor's Companion Rory Williams.

A tag is one thing a card does, on its own, in a vacuum — the building blocks archetypes are made of.