What do you think a reasonable requirement is for completing a ritual in war? Saying it's too expensive isn't really informative, especially when you/we have only experienced a small fraction of the age. What towers% do you think should be necessary is really the question I'm asking.

Autosuccess will almost certainly never happen.

Nerfing them is an option, but giving opponents a way to bring them down is more likely and will significantly improve counterplay options.