mtg commander proliferate deck Atraxa, Grand Unifier PHYREXIAN INFECT Magic Custom What Makes Proliferate So Strong

It has Flash itself and gives all your spells Flash

This is the epitome of a powerful warp card, because you can either FlickerFlicker it, draw a card and put some big haymaker onto the battlefield for free, or you might want to repeat the same process but add to your land count instead, thus making sure your next go will cheat out the huge permanent you couldn't earlier

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Ezuri, Claw of Progress Ezuri takes a different approach to Elf tribal

Then when you swing you can flip it, but you don't have to

Im not sure the mana value here at five is where we want this to be, but its nice having options