Can you use Retreat on a recruit token and channel 1 rune from it?

Ruling: Yes, you can use Retreat on a recruit token and channel 1 rune from it. The token does go to your hand but ceases to exist immediately after moving there.

Sequence:

• The recruit token moves to your hand
• The token ceases to exist immediately after entering the hand zone
• You channel 1 rune as normal from the Retreat effect

Nuances:

• The token going to hand (before ceasing to exist) matters for effects that trigger when permanents move to specific zones
• The token is not banished; it simply ceases to exist
• This distinction is relevant for potential future "when you banish" effects