Spirit Island · Board game rules
Do you shuffle the minor power discard deck to make a new one when its empty?
Yes, you shuffle the Minor Power discard pile to create a new deck when it is empty.
Paragraph_A When gaining a Power Card (either Minor or Major), if the deck is empty, you reshuffle the discard pile to form a new deck. This ensures you can continue drawing cards. (Page 18: Gaining a Power Card)
Paragraph_B The rulebook specifies that when drawing Power Cards, if the deck is exhausted, you "reshuffle the deck's discard pile" to replenish it. This applies to both Minor and Major Power decks. (Page 18: Gaining a Power Card)