That's 3 of the 10 triple colored dragons generals so far. Great minds and all that I suppose.

Notion Thief

I would replace Dissipate or Spin into Myth for a Spell Crumple ?

I totally would run Spell Crumple if it wasn't a 5 dollar counterspell at the moment. Not to mention my group isn't cutthroat enough to have that many tuck spells. I will definitely add it in when I happen upon one. Thanks for the suggestion on what to replace it with!

Gonna take out the vivids for the UB, UR, and RB life lands from Khans

But... vivids! We'll miss out on all the jokes!

I'm curious as to why you cut the Evil Twin? I run him in my Crosis EDH deck, and I've found that every time he hit play, I won that game. He's just really good at controlling whether or not the opponent wanted to cast their commander by copying it the first time.

So I think it's an excellent card in some metas for sure. Unfortunately he was a little clunky for mine as everyone packs too much removal or wasn't running a whole lot of creatures. I felt as though I wasn't utilizing its ability because the idea is to use it on a commander and my opponents were running very specific commanders for specific strategies that didn't mesh with my cards.

I instead swapped it with Dack's Duplicate because I found myself mostly duplicating my big creatures OR duplicating things like Blightsteel and Ulamog/Kozilek that I could bounce out of the way and attack instantly. Hope this makes sense!