After my second big playtest, I've made some changes:
Making some updates with the release of Bloomburrow
A big piece of feedback I got from the playtest was that my cube lacked sufficient removal. With these changes, each color should have ~10 removal cards (bouncing, destroying, exiling, tapping, spell countering, etc). Hopefully I'll do another playtest before making more significant changes.
After our first playtest, it became clear that WR needed a change. I'm trying to convert it to an equipment theme, but it'll need more refining.
Also I'm removing Scute Swarm because it took over games and was too bomby. Hopefully Tireless Tracker will be a good payoff without warping the game.
Next I plan on substantially increasing the removal in the cube.
Adding more direct damage to eventually support Soulfire Grand Master