Phrasing for Actions per Limb
In my system I want to give players one Action per Limb. Some actions require two Limbs to be available or you'll suffer a penalty.
Some examples:
Running requires both legs but you can also use each leg once for two Dodge Actions by pushing off with either foot.
Using a Longsword takes up both hands but you can choose how to use each hand, both on attack means you're in a full tilt attack swinging as often as possible so you get to attack twice, both on Parry or Block means you're focused more on stopping the enemy's and you can stop two incoming attacks.
The problem I'm running into is phrasing.
Describing that Players can make a Reaction "per number of unused limbs" gets a bit clunky as I try to describe how it reacts with other Rules.