CommentStreams:652bde14a743ea102d408a05577143dd

I stand corrected on my prior advice... just logged in and the cost of a Mystery set pack was $400. I could have sworn those packs were going for $100-$200 before, which put them in the same neighborhood of what you'd have to spend to buy an event win, assuming you buy gems during a sale and like you said have a strong enough base deck to clear most of the event map naturally and to convert those gems to energy and then gold at a decent rate.