mtg commander deck primal genesis 2019 C19 Decks unique way to play Magic that is all about awesome legendary creatures Upgrading Primal Genesis | Commander

A cheap Sapphire location that seems solid in item decks, Belle's House makes all your items cheaper

She's a winning condition tied to a unique ability too

Fetchlands This may be an obvious choice but I think the Onslaught fetchlands are important not only for Modern and Legacy, but also for Standard

a three-or-more-color deck should push ramp and fixing toward 12

It will help thin out the deck as well as provide crucial Energy to be used for Longtusk Cub and other Energy hungry cards

Sometimes it would draw the engine, sometimes it would draw the extra turns, sometimes it would draw the win conditions, but it had a very hard time consistently doing them together