tormguard Banner has been reworked to be a strong pickup for heroes who have weak wave/jungle clear abilities and for teams who intend to prioritize objective control over constantly battling the enemy team. However, this does come with the caveat that you will be giving up a significant amount of combat power.
Passive: After using an ability, your next 3 basic attacks in the next 6 seconds deal 75 bonus true damage to non-heroes or 20 to heroes. Can only be refreshed once every 6 seconds.