Wave 5 is a difficult level for people just starting out. With the selection of units at that stage, this wave takes a long time. Try to defend your base by yourself until you get your Bannermen, then get some Riflemen , and finish off by getting Wood Elf Warriors and Pikemen . You need to be careful of your health in this wave, mainly because there are a lot of Skeleton Knights in this wave. Also, keep track of lag that happens on your device. If it gets too laggy, your game will crash and you will have to start Wave 5 all over again (Note that this happened to me).