mtg tribal card type Unity | Onslaught Tribal Card Type in MTG:

Returning Mechanic: Schemes New Variant Format: Archenemy Commander With the release of the Duskmourn: House of Horror Commander Decks comes the return of the Archenemy format

Each Foundations Starter Collection includes 26 Traditional Foil cards, 361 regular cards (including 90 Lands, 10 of which are Full-Art), 3 Play Boosters (each containing 14 cards), 13 double-sided tokens, 1 Deck Builder's Guide booklet, 2 reference cards, 1 click-wheel life counter, and 1 card storage box

It also does provide closing speed like I discuss in this article, so I think it is worth experimenting with

Trimming cards of wildly differing strategies will help keep the deck focused and increase its overall synergy

That makes it a shoe-in for green Commander decks looking for more ways to ramp