Since it has an additional effect as well and could lead to that a player plays with 2 gold extra during a turn in best case scenario it should cost +1 whatever the first effect alone would cost.
I'd price it 2, so it would end up being 3? (Then again, all pricing discussions are hard and more or less meaningless if we haven't started playtesting yet. It goes without saying all numbers will be adjusted...)
As it happens there is an mtg card I think, with this identic name