I think it's very cool...
However I used only 2
Coalition Victory because when I play with friends they hate the "one-card-win" style... then I use
Govern the Guildless because it gives you a bit of battlefield control and also if I use his Forecast ability on the
Bloom Tender making it multicolored, I can tap it without any other creature.
I also play
Last Stand because it's very fun with
Prismatic Omen and
Conflux to tutor all the cards...
But I like this variation, probabily I'll test it with Cockatrice...