mtg warhammer 40k cards Magic: The Gathering 40,000 release date delayed 4 years later, it is

The First Doctors ability to add +1/+1 counters is likely to mostly be used on creatures, but its nifty to think about putting it on Vehicles like the TARDIS

Mill as a win condition in Commander is a big ask since decks have 99 cards, but Hope combined with all the lifegain support makes it much easier to realistically accomplish the mill goal

Depending on your creature count, he grants your entire team extra power and abilities that make them harder to block

Most Charms give you three abilities that are reduced in cost

Cards like Mycosynth Lattice or Trinisphere push Karn from irritating to game-ending, and the fact that this happens without attacking explains why he ranks among good planeswalkers, arguably one of the best to ever get printed for artifact-heavy metas