When champion cards are recycled (such as Teemo being recycled by Mundo), do they go back to the champion spot so they can be played again?

Ruling: No, this is incorrect. Once champion cards leave the champion spot, they cannot go back into it unless a card specifically tells you that you can.

Nuances:

• Currently, the only card that can move your chosen champion back to the champion spot is the Battlefield Hallowed Tomb, which does so directly from trash (not from recycle).