Since you can only control one Role token on a creature, you can get rid of ones that are negative and replace them with a much stronger effect
We're going with 18, which probably seems light, but when you consider we have 11 mana dorks (and 14 if you count Marwyn, the Nurturer) along with four copies of Once Upon a Time, the number of mana sources is actually much higher
It's just higher than the creatures since that's a ton of stuff and in colorless so any deck can add it or cast it
Not sure if I would go with black again (though I just take the card out if I want to see the back.) I cant remember having any problems with them
you can consider throwing trooper back into the ring for another round
The Pokmon TCG Pokmon GO Elite Trainer Box, for example, is a perfect way to get started