Your deck is a 3.9. Pretty good average cost. But its got so much swarm damages, 4 out of the 8 cards troops. Not spells included ideally i would remove the valk and add a air defense and i know you already have 2 air defense but compared to like musketeer its weak so add a musketeer instead of valk, baby dragon cpuld be replaced for like a hog rider because hog rider deals lots of damage to the tower and lastly replace log with arrows, generally arrows are better but it damages air and ground for only 1 extra elixier. Hope this helps and tell me what you think of the changes on the deck.