My current strategy is also stop renting, similar to other comments: renting will end up biting everyone in the ass, specially now with the new season rules that will make card owners revoke their rentals on the last day of the season just to rent again for higher prices, as people will be desesperated to rent and climb to higher ranks.

I'm wanting to purchase reasonable cards to hold myself in the Silver III or Silver II league; after that, I'll just go crazy on cheap gold foil cards to achieve the minimum collection power.

IGN: @luizeba