Waaagh!

(Rule)
Description: If your Army Faction is **^^Orks^^**, once per battle, at the start of your Command phase, you can call a Waaagh! If you do, until the start of your next Command phase, the Waaagh! is active for your army and: - Units from your army with this ability are eligible to declare a charge in a turn in which they Advanced. - Add 1 to the Strength and Attacks characteristics of melee weapons equipped by models from your army with this ability. - Models from your army with this ability have a 5+ invulnerable save.