Everyone is throwing around the ideas of maindeck Naturzliae and md Artifact mutation, well IMHO you never want more maindeck hate than you absolutely need. More hate=less threats, and against decks that the hate doesn't affect, those less threats are whats going to cost you a game. Artifact mutation>>>>naturalize in the current meta with Plat Angel/Gilded Lotus/Sundering Titan bouncing around. I even beleive that you can target a Darksteel Collossus with it, and even though it doesn't get destroyed you still get 11 sap tokens (same as mana drain and a uncounterable spell). And if you fear dragon in your meta, Tormod's Crypt>>>>>Naturzlize, simply based on the fat that you will almost never have 2 mana saved up to cast the Naturalize as you want to be dropping threats, and also if they go off first turn of 2nd you won't even have the mana yet, while with Crypt at 0 you can easily drop it on turn 1, and it also doesn't allow your opponent to save a Counterspell, either they have Force of Will or your first turn crypt is golden. So all in all:
Artifact Mutation>>>Naturalize
Tormod's Crypt>>>>Naturalize
Maybe if it was 1 green, then, but as a Disenchant copy, well when was the last time you seen someone play Disenchant? 2001 Keeper? It's funny to think that a 2CC instant that takes out half the important permanents in the game would be too slow. Man I am getting old.
