A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from the Wayback Machine (its copy), so posts it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
One of the rulings on the egg states that, once played, it loses it's status as a unique action.
I'm sorry if this comes off as a stupid question, but, does this mean that if player A eggs a personality, player B may then play his egg, as there is no longer a unique card named "Egg of P'an Ku" in play?
(I)f player A eggs a personality, player B may then play his egg, as there is no longer a unique card named "Egg of P'an Ku" in play?
Yes.