Great tutorial for renting cards. Honestly I believe that with the low card prices at the moment, it's a good time to actually purchase our own cards and reduce renting.
I have picked this post on behalf of the @OurPick project and it will be highlighted in the next post! 
I completely agree that this is the best time to purchase cards! I've been buying some myself, and hope to complete my decks once the CL summoners come out! :D