Each skill can be used at any time, only by its character, and only once per round.
Carpenter
Economical Construction
Discard 2 Determination tokens to spend 1 less wood during one Action of any type.
For example: if you need 3 wood to build Shelter, the Carpenter can build it with only 2 wood. If the Threat Action requires 1 wood, the Carpenter can take this Action without discarding any wood.
Crasmanship
Discard 2 Determination tokens to reroll any brown Action die. Note! You cannot use the Determination tokens gained from an unsuccessful die roll to reroll that die which gave you those Determination tokens. …