Assuming you only ever use the "2" to "3" mode on this card and your resource economy can't support paying for the third damage, then when you don't have Ancient Stone, you're getting +1 card or +1 money per Blood Rite. When you do have Ancient stone, you're getting +1 testless damage on top of that.
If this card cost 10 exp, then it would take 19 exp to buy 2 Ancient Stone and this card. That would still probably be a bit strong for a 19 exp deck. So maybe this card should cost 10 exp.