Omnath, Locus of the Roil already enters the battlefield with a removal effect based on the number of elementals you control, so youll want to build around that
While something like Crash Through has the word draw a card on it, you are spending one card to get one card
Things like Mondrak, Glory Dominus and Teferi's Protection are obviously great in this deck, but they can both be replaced with things that still synergize well enough with the rest of the deck
With plenty of effects to flicker your own creatures at instant speed, you can keep triggering her abilities on your opponents turns over and over again for tons of value
So I sat down with the mythic drop rates, for foils and nonfoils, and tried to figure out how the drop rates on the MAR sheet compare to an actual in-set mythic rare in a regular frame
Rejuvenating Springs: green or blue