I accompanied Julie to the room she was using in Steward's house. Inside were all her belongings, and one of her backpacks held various magical items she had brought to the village.
"I have these potions here," she said, pulling out a vial filled with a blue liquid. "They will restore your power to use more abilities. First, use the six charges you have, and then drink this potion."
She had about five potions in there, but only gave me one. I asked why, since I didn't know and wanted to learn.
"You need a stronger body to use more potions," Julie explained. "Even strong people don't take more than four during combat, and afterwards they need at least a week to recover. Restoration potions are great, but you have to be careful not to overuse them."