Colored gear with specific classes.

[Oscillate_Wildly]

So, to be an effective healer, you'd need:
Green Felt Robe: +8 healing mag potency
Red Felt Hat: +4 Mind

Bozo the Clown anyone?

Perhaps, if you wanted a matching set. If we're looking at +healing mag potency you'll look at the Felt Cavalier's hat in Brown. Or if you're less ambitious, wool in purple.

OR if you were looking at that stat in specific, there's a mask of the immortal hex? Offers I think +20 potency healing. D: