I've been thinking about Sigil of Distinction, and I'm going to try playing without it for a while. Most of the time when I play Trinket Mage, I'd rather have a Chalice, Needle, Crypt or even a Mox. I almost never keep it in post board, and there have only been one or two games where I've sided it out and wished I hadn't. Sigil is randomly awesome once in a while when you're mana flooded, but that's the only thing going for it.

Don't get me wrong it's a solid card, but it's easily the weakest slot in the deck. If you disagree, I'd like to hear your argument along with what you consider the weakest slot in the deck.

On a friend's suggestion I'm going to try -1 Mulldrifter -1 Sigil +2 Umezawa's Jitte to deal with Zoo, Burn, and the sometimes fatal Ancient Tomb damage. I'm not a huge fan of this change, but I'm 0-8 against Zoo and willing to try just about anything to avoid losing to it in the playoffs.