Pointless
You pick three cards out of every card possible, and then itll tell you the best one, and then you pick that one. You do that 30 times, and youve got a deck. All this app does is how many of what cards you picked. I question how it ranks cards (wild pyromancers are good?!). Anyways if all this does is rank cards I can think of a lot better way to convey that information than making you tap 120 times.
Paj006 about
Arena Calculator for Hearthstone