I think this should be an easy question but I haven't figured out the answer. How do you get esper's levels to go up? Is it like the average of all your party members?

I'm at a point where some of the missions have enemy espers that are 10 or more levels higher then mine. It makes it a little difficult sometimes. Oh, and what level is Yiazmat? I am just curious for when I am able to do that mission.

I think this should be an easy question but I haven't figured out the answer. How do you get esper's levels to go up? Is it like the average of all your party members?

I'm at a point where some of the missions have enemy espers that are 10 or more levels higher then mine. It makes it a little difficult sometimes. Oh, and what level is Yiazmat? I am just curious for when I am able to do that mission.

yiazmat will always be about 12 lvls higher than your party members.. and as how espers lvl up i guess they lvl up along with your party

Rank III espers are usually a few levels higher than your maximum party level. Rank I and II espers average along with your party. The higher your party's level, the higher your summons' levels.