On Hold does Hunt on Reckoner's Arena give the Hunt XP twice?

Yes, a unit with Hunt will trigger its Hunt ability twice when you perform a "Hold" action at Reckoner's Arena.

According to RiftJudge FAQ #9544, this occurs because the Hunt keyword functions as both a "Hold" and "Conquer" effect. Here is the sequence of events:

1. Action: You perform a "Hold" action at Reckoner's Arena.
2. Trigger 1 (Hold): The "Hold" condition of the Hunt keyword is met naturally by your action. This places the Hunt ability on the chain.
3. Trigger 2 (Conquer): Reckoner's Arena has an ability that reads, "When you hold here, activate the conquer effects of units here." This forces the "Conquer" condition of your unit's Hunt keyword to trigger as a separate event, placing a second instance of the Hunt ability on the chain.
4. Resolution: Both instances of the Hunt ability resolve from the chain (Last-In, First-Out), resulting in your controller gaining the Hunt value in XP twice.