Oh. I thought that was the 'Aura' thin you were talking about.

Arma Gigas...that's a pretty cool name. I've got a few Personas with me on hand. Usually we go to this blue door and talk with to a guy with a large nose who can summon others for us.

Anyway...

Here's Hades!

[Bluish energy rises from the ground, causing his clothing (and especially his hair) to move upwards before it explodes into glowing pieces that reform behind him into a creature twice his size.]