The ability to generate a nova per turn with no cost should be followed with a +6 - +11 increase in cost theoretically.
The ability to generate a supernova per turn with no cost should be followed with a +13 - +23 increase in cost theoretically.
Do you think a nova for
deserves only a +2 increase in cost?
Do you think a supernova for
deserves only a +2 increase in cost?
I hope not.