The more I've played and tinkered with this build, the more I like going with 4 Duelists and 2 Mother of Runes instead of the other way around. Getting double-strike with any of our ridiculously powerful equipment is just too strong for a one drop. Still love this deck :)

I do agree that Kor Duelist with any equipment is busted, but I still prefer the playset of Mother of Runes. With all the Abrupt Decays and Swords to Plowshares running around, she is just too important to protect our creatures. I could see cutting some number of Leonin Shikaris for more duelists.

I'm glad you still love the deck!

I might agree with cutting a Leonin Shikari. They're not to good in multiples. But I don't think it should be for a Kor Duelist, as it isn't good in multiples either. Getting metalcraft early is obviously important, so might be good to add another artifact to make sure this consistently happens.

Early metalcraft hasn't been an issue in about 300 games played.

Try a one or 2 of Kemba, Kha Regent. Could cause shenanigans later in game with puresteal swapping end of turn

Although Kemba, Kha Regent is an interesting card, I don't think it would be very good in this deck. When I hit 3 mana, I usually want to play a sword or leave mana up for a removal spell. Also, the converted mana cost of 3 doesn't fit in with the AEther Vial plan.

Thanks for the suggestion!