Eidolons? Well... they're like these big old mythical beasts you call forth with summoning magic, of course! Usually they'll aid the summoner that calls on their powers.

[It probably isn't much of an explanation, but it makes sense to Eiko. While she's only six, she can elaborate more if prompted. It just hasn't occured to her!]

So you've practiced summoning before? What kind of magic do you use besides that?