While its a risk to give your opponents extra resources, it also tends to make the game just a little more interesting
Enter the Infinite draws your full library and places one card back in that zone to prevent you from losing unless someone forces you to draw a couple of times
Doubling your lifegain just doesnt matter in Limited, and cost reduction isnt that important either, especially once youve hit 4+ mana already
It has continued to dominate Standard since October, and is currently going through a new creative process on Magic Arena to alter or nerf cards that have become too powerful
Syr Gwyn, Hero of Ashvale Syr Gwyn, Hero of Ashvale could be exceptional, but its just a little too much
The most impactful that Id personally pick would be: Deflecting Swat, which is always good when you need to protect a Commander that attacks for value and damage