Can a Legendary with the Nature/Oceans/Sky Aura summon itself?

In the Blessed and the Damned, Legendary Pokémon are given auras that grant special abilities to make them even more formidable. Three of these allow the user to summon a combatant of a level equal to their own (Or half their level if the combatant is a trainer).

I can not find any limitations to these combatants other than the level. Could this aura be used to summon an exact duplicate of the Legendary in question? I understand that in many cases this makes no sense, but it could be a way to explain Celebi’s gimmick where dozens of it from different times appear: One summons one other. Next turn, both summon one more each- Etcetera.