If you’re going to play MTG as a simple game theory optimal affair, might as well switch to poker… a Nash equilibrium surely exists all the same, but charm of the game is in the variety and checks & balances.
Well, from the perspective of optimal play the more complex and changing nature of MTG means that optimal play is harder to find and doesn't stay still, so there's a lot more metagame of figuring out what that play is.
