It seems that the 3rd trait is redundant on these troops. How about making these troops more relevant outside of raid by adding a useful trait like gain 5 crafting diamonds per dungeon match as a trait. You could even mix up the bonus rewards on different boss killers, 1 gives bonus shard, another can give a colored stone for crafting, etc. A limit of 1 activation per trait type per match of course so duplicates of one boss killer would not benefit. It also gives players an incentive to buy into the raid and get the boss killer troop. I think these traits would be more favorable.
Can I get some likes on this?