mtg commander 2019 deck Dominaria United Display (Set of 2) Breaker of the Coil. Mtg Commander 2019 Primal Genesis

At the beginning of her end step, if any player lost four or more life that turn, she may draw a card

Another great choice is Craterhoof Behemoth which gives your team a massive +X/+X boost and trample from your creature count, making your Elf swarm lethal

Once the first triggered ability is on the stack, it won't trigger again, even if more damage is prevented and more incarnation counters are put onto it

This isnt technically infinite right away, since you need to reach eight mana to stop paying two life per flip, but you should be able to do that within a few extra turns

It lets you copy any permanent in 4/4 Dragon form