Can you play a copy of a gear you already have on the board (e.g., two Seal of Strengthening)?

Ruling: Yes, you can play multiple copies of the same gear. There is no legendary rule or uniqueness rule that prevents this in Riftbound.

Nuances:

• The Unique keyword exists in the game, but it only restricts having more than one copy in your deck, not on the board
• If you could copy a gear or if your opponent has one out, there's no competition for a "unique slot" on the board