User can steal a person's quirk for 10 hours.

Pros:
-user will have to learn control the instant they get it
-user can get a quirk they need in emergencies
-user will be well prepared for places

Cons:
-only 10 hours of that quirk will happen
-user will get overwhelmed with quirks quickly
-user will be obsessed with quirks

Weakness: quirkless people
Can't take a quirk that doesn't exist