Tournement: reduced missing color tiles

Ok, starting off repeated matches with a board full of green tiles on a no green hero tourney is ridiculous. Several games in, the board was filling with green. It’s bad enough I’m running with two healers now to survive (because of poor tile drop), but common. All it’s doing is giving the enemy free attacks. With there special and attack rate, they hit like a level 12 titan.

I suppose drop rate is something like 20% x5. Maybe change to 5% for imposed missing color heros?