I'm not sure if it's only me or it has happened to other people, but the Battle Cry ability we can choose for our custom hero is...horrible.
How? The ability gives you 10 additional attack points per level for 10 seconds where level 4 is max. . . which really means nothing unless it will change to percentage form such as additional 100% per level and still applied to hero.
I would suggest some updates for the Abilities Manuals in Library for the forum which separates the ones designed for original hero such as Commander. You can find the description of Battle Cry ability in library says duration 15 seconds with 300% bonus damage but not applied to hero. It would be nice to have a "special list" of abilities as options to look at when someone purchase a custom hero or win from contest.