Again, it wasn't a surprise for Rydia to hear that Firion didn't know anything about summoning, though it did make her wonder just how many worlds<em>were</em>familiar with it. She couldn't be the only summoner in this whole army, could she? "Well, it's pretty much what it sounds like. There are these beings called Eidolons, which come in all different kinds, that are like intelligent, benevolent monsters that we can call into battle for a brief time. For example..." Rydia stopped on the staircase and held up her hand, a small ball of light forming in her palm like a beacon. After the moment, the ball rushed a few feet down behind them and burst with a flash, upon which a large, goldenrod chocobo appeared in its spot. Wharking happily, the bird stepped up and nuzzled its beak into the hand of the summoner, who chuckled happily and started petting it.