One-Armed

Can only be taken at level 1, must be a race which has arms

You only have one arm. This prevents you from doing anything if your one hand is full, and prevents you from holding multiple weapons or two-handed weapons.

Cannot use two-handed weapons.
Cannot use two weapons at once.
Cannot use a weapon and shield at the same time.
Cannot make object interactions involving the hands if your hand is full.

FLAW: This is a flaw feat. At your DM's discretion, you may take this feat at level 1. If you do, you may also gain a feat, or increase two of ability scores by +1 (or one by +2).