Please check the photos for the condition — if this is a multiple-quantity listing, the item you receive will be in similar condition. 🙂 I have tested the amiibos and they work but not frequently. This might be different on the switch 2 as I don't own one but from my experience it can be hard to scan them.
Signs of use may be present as expected with pre-owned items. I always try to photograph any important details so you know exactly what to expect, though there may be a few extra light scuffs not shown. For multiple-quantity listings, you’ll receive an item in similar condition with only minor differences between units.