mtg rainbow dragon commander deck EDH Deck The Ur-Dragon 100 Magic Cards Custom Deck Dragons Powerful MTG Commander (Rule Zero) Deck

It's fun stuff

With access to a bunch of cheap spells like Swords to PlowsharesSwords to Plowshares, Mystical TutorMystical Tutor, or Birds of ParadiseBirds of Paradise (which you want to be playing anyway!), you can net multiple buffed and evasive creatures and card advantage to boot

Lifestreams Blessing is potentially quite a powerful draw piece, especially in a power-matters deck like this

Its unlikely that Tasigur jumps from his preorder price out of the gate, although I dont expect it to fall much/at all

Things like Forced Fruition and Seizan, Perverter of Truth are awesome because they give opponents something at a cost