Buzzelina and Flittery are both flying insectors so you know you have to guard your King surrounded by your allies. Pay attention to the Faerie and Snail Bomber for both has troublesome abilities. Faerie can use Charm Beam to turn your allies into opponents. While Snail Bomber can kamikaze and possibly annihilate your Insectors. It's best to take out these two first. The rest should fall easily.