What’s the point? In the first round, we attack with these stacks: birds, air units, and psionic creatures (because the chickens will kill 40 fairies and stand against the wall, so you can only attack with three without leaving them vulnerable for the next round). That means we’ve already dealt 3/4 of the damage from the first attack strategy. In the second round, there are at least 5 birds, which means minus 2 psionic creatures (because the remaining three fish won’t be attacked). So, after the retaliation, we attack with two stacks (air units and birds). There are 4 units left (roughly, because I don’t think 450 hit points can be taken down in 5 attacks). The 4 units finish off the remaining air units and birds. We’ll definitely lose one.