Using goblins, valkyrie or even regular skeletons can distract the giant skeleton for a long time, hopefully long enough for you to kill it effectively. You want to spend 6 or less elixir to counter him since he costs 6 elixir to use. Honestly, the Giant Skeleton is one of my favorite cards, I think however the giant skeleton can be easily countered as long as you remember these things:

If the opponent is using Freeze, Zap, or has Hog/Horde backup watch out for it to be taken down to quickly.Ībove all, the biggest priority is to keep the bomb away from your towers and avoid sacrificing too many troops to it. The Inferno Tower is a positive Elixir trade if he is alone, but does need to build up enough DPS to take him down. Inferno/Other Towers - Giant Skeleton will target anything, so Towers/Huts are a great distraction, essentially similar to kiting.This is most easily attempted when he is not backed up by ranged Area Damage troops like Wizards/Baby Drags (who will instantly splat cheap troops). Kiting - The best Elixir trade on a Giant Skeleton is to use cheap Horde troops like Skeletons or Goblins to kite him to the center and even across to the other lane.To avoid this, put troops behind him once in your territory, so that they get clear before the bomb goes off. Turning - Anything that kills the Giant Skeleton will promptly path right past his bomb.Minion Horde or Skeleton Horde will take him down in seconds. Hordes - Generally Giant Skeleton attacks slow, so he'll only take out one Horde troop at a time, and will get pummeled by the rest.My main deck uses Giant Skeleton, so I've seen a lot of defensive strategies.

Skeleton vs skeleton army clash royale