Only your first sky ring is free you'd have to pay for the other two with vongola. Also, since you chose rain and storm as secondary attributes the highest flame you can produce of that type is b. Check out the flame section in the rules if you're going to use secondary attributes. Will you still want the rings even though you have to pay for them? This is if you change the purity of the storm ring to b. Also, history is a required ring field.