What is the reasoning behind the idea that Auxilia units will battle back with one extra die?
The Boar's Snout says "Select one foot unit and up to two adjacent foot units. Each unit can move one extra hex and battle. When battling, add 1 die to each supported unit. Ordered units may not engage in Ranged Combat."
Can you explain what "When battling, add 1 die to each supported unit." means? Which units are supported the supported ones? Does this 1 die apply to both the selected foot and to the adjacent foot units?
1. Extra die battling back is conceptually the shield wall, but also to make the Auxilia a little less hapless. Originates from Spearmen in BattleLore
2. Supported units are those with 2 adjacent friendly units or leaders. See the 2nd dot point under Bolster Morale rules. The extra die applies to each ordered unit that is supported at the moment of battle. Conceptually it is the mass of men pressing forwards into the enemy line, typically led by the best troops.