Another expensive but effective attack strategy is an all witches and heroes attack
At 250 per max level witch this is very expensive in terms of Dark Elixir costing a whooping 250x20= 5000 dark elixir which I swhy I personally prefer balancing my arttacks with different troops. But I may start using 4+ witches in the future Mixed wth Golums and pekka etc... Probably closer to a GoWiWI or Go Wipe. I am the leader of my clan and a lot of times I donate often, so much so that I hit 7000+ troop donations quite often. And with everyone always wanting different troops I have to keep a pretty diverse army anyway, so I tend to have slight fluctuations in my troop configeration each time I attack. I tend to go with a balanced approach of 2 Golums, 1, 2 or 3 pekka 2 witches a shitload of wizards and a few archers then go all in, sometimes I throw in a few baloons or a few hogs if I notice people ask for those in their troop requests.