I - Rules
|Effect:||When you declare an Advance action, you may immediately recover 1 fatigue.|
Road to Legend
The Relentless skill can be learned at the Forge in the Advanced Campaign.
Sea of Blood
The Relentless skill can be learned at Gafford in the Sea of Blood Advanced Campaign.
II - Tactics
Declaring Advance happens often in the game, so this skill is a good source of extra fatigue.
Relentless becomes really interesting if it is combined with the Able Warrior skill (something you can plan ahead in the Advanced Campaign). You can then move and attack twice by spending only 1 fatigue instead of 2. On Varikas the Dead, it means doing the same for free each turn!