Ha, thanks for the game! I conceded because I was mana screwed, believe it or not my hand was nothing but copies of [[Light Up the Stage]] (and I wasn't gonna get damage in) and [[Anax, Hardened in the Forge]]!
Personally, I don't "play to quests", I just acquire them naturally, maybe I'll go an extra game or two to finish it off.
While the team occasionally has gotten gems as a thank you, I'm glad we have to play through the game the way everyone else does. Not having the normal play experience is a good way to lose touch.