It's about a 30% hit to use off-color when evo'ing. Avoid doing it.
Also, you can sell that gold king for a crazy amount of cash. If you are early on, shouldn't be a problem doing so
Good to know, probably won't sell it because I'm rank 52 sitting with 180k, not really hurting for money. Would prefer to have the exp gain then money right now I think. My main team is a lvl 50 Isis, a lvl 42 Minerva, a 23 Harpie Demon, a Keeper of Woods, and a Dub-mythlit. I also have a keeper of rainbow and a 33 Ice Guardian that I sub in sometimes. I have nothing to spend money on right now and 3 of my monsters are just waiting to be replaced as soon as I get a decent drop to replace them.
Yay for evo material.