Editing Legends - Combat Rules (section)

===GROUP ATTACKS===

Characters can choose to combine their attacks to mob a single enemy.

All attackers must act on the same Initiative step (usually that of the slowest fighter) and be identically equipped. 

Ranged attacks can only group attack with other ranged attacks. Melee attacks can only group attack with other melee attacks.

The group attack counts as a single attack by one of the group, but for each additional individual in the group add +1 dice to the attack dice pool.

Against opponents of equal size, no more than five characters can group attack a single enemy in melee at once. Ranged attacks can be grouped in greater numbers.