RE: I bought 2 gold foil cards - Frontier and Escalation editions!

I played even more, but not this time.
My energy now is on lows.

When I made challenge from 0 rating to champion it was with one big win streak without lose on my alt - like 114 wins in a row something like that. I started with 50 energy, got bunch of energy from advancements, chests and I maybe bought some energy for dec, I don't remember well. It took me like 5-6h of playing to advance to champion III and I finished playing, when I broke win streak. It was in wild. I had many rented max level cards. But it was long time ago.

When you are in high champion, sometimes game can't find you opponent and waiting time is really long.