Internal Reservoir
Source
Character Operations Manual pg. 55
When you take a 10-minute rest, even if you do not recover Stamina Points, you gain 1 Entropy Point which lasts until it is spent or you take another 10-minute rest. Additionally, your maximum number of Entropy Points increases by 2.
Dragonscript
ID
daa8ece3c9f5f8c8693e8255