Dress Spheres United

A PC has a number of Dress Spheres that are essentially Pokemon species mechanically.

However, these are not separate combatants you summon. They change the user's stats on the battlefield, and each has a separate HP bar. You can swap between Dress Spheres mid-battle as a Minor Action by paying 2 AP. When a Dress Sphere's HP bar is depleted, you can no longer use it until it recovers. Upon being KO'd, you automatically swap to another of your Dress Sphere's at no AP cost. Each PC also has a base HP bar for when they run out of Dress Spheres. They're pretty shitty in this form.

As far as "Trainer mechanics" go, each PC has one Pokesupport Class such as Duelist, Tasky, Stat Ace, etc and a set of Skills. The rest of Trainer Progression is various out of battle abilities.

--This is the part where my ideas start getting dumb--

Each Dress Sphere has tags associated with it such as "martial" or "magical" or certain elements or associations. Various non-combat abilities can be locked behind having a number of Dress Spheres with certain tags.