Yes, finally got it !!

Skeleton Army is great for taking care of tank type enemies like the giant, prince or skeleton giant.

Although they can easily be defeated by the arrows, I will still keep them in my deck.

You can join a clan once you have reached level 3. Being part of a clan gives you access to donate & request cards. If you donate you are rewarded with experience & gold.

You can also chat with clan members & have friendly battles.

If you are looking for a clan to join, search for ugvm

I'm level 6 at the moment & hovering around 925 trophies. Seem to be getting quite a few drawers lately.

The game let's you have three decks, my first has all the lowest characters 1's, 2's & some 3's this gives me an average elixir rate of 2.6 good for an assault on enemy towers but you have to be careful when facing off against some of the tougher characters.

I tend to play with deck 2 mostly because it gives me a good range with a couple of strong characters like the Giant/Baby Dragon & basic characters like archers, knights & bombers. I do like the bomb tower which can defend a large area.

Deck 3 is the strongest with all the big heavy hitters but the average elixir cost of 4.2 takes a while to recharge.

I would say anything between 3 to 3.5 is about right to have a strong team. I've level 5 at the moment & nearly have 800 trophies to unlock Arena 3.

Outside of iOS I'm still plodding along on Game of Thrones & completed Episode 3 yesterday evening. I've not yet deleted my MGS5 save so may yet go back to play Part 2.