Shit man, you're that worried about Death and Taxes, better MD you some Anarchy.

This:

I maindeck Choke because it is a beating against some of my worst match-ups. Sure, it's dead against non-blue decks but if you're playing against Zoo/Goblins/Survival/Loam then you should win those MU's anyways. Having a bomb against your harder MU's out-weighs the cons of having a single dead card (that still cantrips...) against your good MU's.
is what it boils down to.