2/5 mainly coz units didn't listen uless i spam clicked. theres not much variation other than upgrading cards which you dont really get that often. and one big thing in a single battle. i've almost gotten the enemy castle down to no health, then out comes 70 units, 3 of them appearing to be hero units (gorilla x2 and knight) which just rolls my army
i'm still waiting for some new cards at level 5atm... its also pretty retarded that projectiles will continue to fly until they hit something... not to mention, if your attack on an enemy fails, your troops will get rolled even if you retreat.
probably just me but if you have no long range units then you cannot win. i was at the enemy castle and a bunch of long range units just destroyed my troops, ran all the way to mine and prevented me from getting any of my troops in range.
by far one of the most unfairest and frustrating card games i've played... iunno if i'm just unlucky, but almost all attacks i've made have gotten my card killed, and whenever i get a good card, the computer steals it and kills me with it...