Adventure Time 2 Flame Kingdom and fire prince

[capedcrusaderj]

okay so how would these two interact

Flame kingdom: fire/flame items have double their combat bonus.

fire prince: you may choose to have your attacks count as fire/flame and you get an extra +1 bonus for items already count as fire/flame attack

so if I have flame sword as fire prince +2 would it be +1 from prince = 3 and then doubled to 6 or doubled to 4 and the +1 to 5?

also if i choose to make attack fire/flame as prince does my item that arent fire/flame then double with fire kingdom?