Okay i think the best way to balance this is to make it only last 4 seasons (1 year...) and then it disappears.
You play it, it runs through each season once for a total of 4 turns, then disappears. Cost goes up to 6/5 or 7/6?. Reverse time would not affect it as people think this would make Time too strong.
I could keep the cost "quanta of the same element" or I could change it to "quanta of your mark"? what do you think?
Kael Hate, Kuroaito, PhantomFox, opinions?