Witch Level 3
Witches are one of the least-used and most under-rated troops if you ask me. They cost a lot, aren't very powerful, and take up a lot of space. However, a level 2 witch will spawn four skeletons to attack for her, while she hides behind them and shoots nearby targets. And she can unleash up to 8, until some die.
Witches are a huge part of my attack strategy, and after the update we'll have level 3, which will unleash five skeletons at a time, and 10 total. Of course as they die the witch can spawn more to surface from the ground and attack, and this should make those GoWiWi attacks even more powerful. Level 3 witches will most likely only be unlocked at TH11, but we'll have to wait to find out. See them in action right here.