Strength

Combat Strength determines your odds of winning the sword figth.

Combat Strength is the player's swordfighting skill plus confidence and team spirit multiplied by energy.

Confidence and team spirit are not straight addition but instead are taken into account.

Here's how:

T = TeamSpirit divided by 5

if Energy < T then ET = T else ET = Energy

C = Confidence divided by 10

Combat Strength = ( SwordFight + C + ( SwordFight * C / 100) ) * ET / 100

More info on Combat