Troop upgrade problem


#1

Screenshot_20180405-102115|690x388
Why cant i upgrade my troop?
https://imageshack.us/i/poRyCrFjp


#2

You actually need 26 copies of the troop in order to upgrade it, because it costs 25 and you need one left over to use. It’s confusing, for sure; previously the game would let you “burn” cards toward the 25, and it was clearer what was going on. Now that partial ascension is no longer possible, it’s much less clear.