Judges, feel free to discuss this scenario on Judge Apps!
[expand title=Answer]Pretty much every one who answered got it right. There was a little hidden trap in that you find out only at the end of the scenario that there were actually more than 2 cards in Anthony’s hand. This was a lesson for us to be more clear but might as well be a lesson to you, dear reader, to pay attention to details.
The official answer:
Anthony gets a warning for HCE. Reveal Anthony’s hand to Barnabus, Barnabus gets to choose a card that gets placed onto the library of Anthony’s deck since the extra card was previously known to him.[/expand]