The Banner is a new item on Evony.
Ss (2016-01-20 at 07.43.56)

The Banner allows you to send 10x the normal amount you can from your rally spot. You will receive 5 for free when opening the War Package from the Daily Gift, as well as a Mechanics Battalion, and an Excalibur.

The military and logistical genius of Lord Stygandr has allowed the development of new logistical plans that allow you to field a greater number of troops on the field of battle

When applied you will be able to send an army up to ten times the size you can send from your rally point