Confined Dexterity / Unsteady Legs

Unable to stand or move much, Erky might have focused on small, meticulous tasks with his hands, but his sense of balance and leg coordination suffered.

• Patient Hands. You have advantage on Dexterity (Sleight of Hand) checks made to manipulate small objects (like picking a lock, palming a coin), reflecting practiced fine motor skills in confinement.
• Detriment: Compromised Balance. You have disadvantage on Dexterity (Acrobatics) checks made specifically to keep your balance (e.g., walking across a narrow beam, staying upright on a slippery surface). Your legs haven't fully recovered their sense of stable footing after prolonged disuse. Note: This doesn't apply to all Acrobatics checks, like tumbling or escaping grapples, just those explicitly involving balance.