Demonic Attorney ran a list at the Myriad tournament. Ask him about it and how he did. Care to share?
I played Grimlong there to top8, to lose to JuggernautGO's Sphere of Resistance/Gilded Lotus beats. I was very happy with it all day, I had 3 Xanthids maindeck, which were great to me. I had to run it suboptimally (no Time Walk or Seal) due to the 10 proxy limit. I am pretty sure I played against Chris during round 3, and went 2-0 just by comboing out faster. I think I like running Chrome and Diamond in the side, to bring in against combo to help speed you up, it makes a difference. I only played 4 out of the 6 rounds of swiss, going against Burn, somethingTog, the mirror, then CS, then IDed into top8.
I was not a fan of maindeck Colossus, which I tried there due to having 2 open slots. It sat in my hand too often, when it could have been mana or something else helpful.