Star-charged Weapons: An Eternal Starhost’s weapons are supercharged with the power of the heavens.

Once per battle, at the start of your hero phase, if you have any battalions with this ability in your army, you can say that you will draw on the power of Azyr. If you do so, until the end of that turn, while units in those battalions are wholly within 12" of any friendly cosmic nodes, improve the Rend characteristic of their weapons by 1.