Profile of Easterling Kataphrakts Black Dragon (The Host of the Dragon Emperor)

At the start of the Move phase, a model with a war drum may declare they are sounding the advance. When this occurs, all models with the same keyword as the one shown in brackets, within 12"" of the drummer, add 3"" to their Movement value if they have the Infantry keyword, and S"" to their movement they have the Cavalry keyword or the Fly special rule for the remainder of the turn. Models that are affected by a war drum may not Charge in that turn. Models can only be affected by a single war drum at any one time.

A banner has a 3" area of effect that extends out from the model carrying the banner (although some special banners may have a larger range). If a Fight has one or more friendly models, including Supporting models, within the area of effect of one or more friendly banners, then the Fight will be affected by the banner. If a Fight is affected by a banner, then a single friendly model in that Fight may re-roll a single 06 in its Duel roll to see who wins the Fight. This re-roll can be made after your opponent has rolled their own dice to see who wins, but must be made before any Might points are spent to adjust scores.
It makes perfect sense that a banner must be flying in order for its bearer’s allies to gain the benefits of it being near, and as such a banner bearer must be standing for the effects of a banner to count. Models cannot benefit from the effects of a banner if the bearer is Prone, including any special rules associated with that banner if applicable. This includes Hero models that have a special rule that says they ’count as a banner’. However, Hero models that have a special rule that says that friendly models within a certain range count as in range of a banner can still use this if they are Prone.
It is possible that one player may re-roll a dice and find themselves winning the Fight - in which case their opponent may wish to use a banner of their own. Remember, a banner only provides one re-roll to each Duel roll. If a model is in range of multiple banners, they may only benefit from one of them.
Any model carrying a banner is encumbered by its weight, and suffers a -1 penalty to their Duel rolls.
A Warrior model carrying a banner who is slain or flees the battlefield may pass it on to a friendly Warrior model (but not to a Hero model) who is in base contact, not Prone, and is not Engaged in a Fight. Swap the models over if they are the same type of Warrior, or find a suitable banner-carrying substitute in your collection. Some common sense is required when deciding which models can carry a banner; the likes of Bats, Wargs or Spiders, for example, cannot hold a banner due to their lack of hands!