It says, ‘Finish Three Games of Blitz’ - what constitutes ‘finishing’ a Blitz game…? I played a Blitz match(vs. the A.I., trying to go as long as I could w/o drawing a card - just for the hell of it), & lost…but, somehow that didn’t count. So, what DOES count, as ‘finishing’ a Blitz game?
Likely facing off against other players.
Try placing a couple of troops, but not too many. Perhaps trying a little, but not a lot, might help. Online will probably work as well!