If Herald Of Spring holds Reconers Arena, on its turn does it score twice exp?

To determine if Herald of Spring scores its Hunt XP twice when holding at Reckoner’s Arena, we must analyze the interaction between the "Hold" action and the battlefield's ability.

The Ruling

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 (gain 1 XP) 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 (gain 1 XP) on the chain.
4. Resolution: Both instances of the Hunt ability resolve from the chain (Last-In, First-Out), resulting in your controller gaining 1 XP twice (2 XP total).

Note: This ruling is based on RiftJudge FAQ #9544 and #10039. The ability "When you play me, gain 2 XP" on Herald of Spring triggers separately when the unit is played and does not interact with the Hold/Conquer triggers at the battlefield.