Hero Abilities, What To Upgrade Next? I am a smooky zooka player with 6gbe/4td statues. I use all zooks or warriors to clear my map.  I finished upgrading all the heroes and maxed battle orders with brick.  I wanted to know what the next best ability to upgrade is.  I only use battle orders with brick on smokey zooka attacks on my map and for ops.  I have used the shield ability of Dr. Kavan with warriors but it doesn't seem to be that much better with an upgrade.  Any thoughts would be appreciated!  Thanks and boom on.