About the Sea King (EA)

[Herode]

Hi gentlemen,

I'm trying (as a newbie...) a game with Tien-Chi EA. My pretender cast a Troll King's Court and and here went a Sea King wich is described by the following : "The Sea King is a powerful water mage who may grant humans water-breathing abilities if they accompany him".

I can't find the way to trigger this : no spell, so item forging, just putting human units under his command does not work... What did I miss ????