There are also alternative units; they are easier to obtain, and they don't land in the thick of the battle. Moreover, they are quite strong, and they won't survive many attacks – they won't be targeted repeatedly because they have an ability... Only archers and mages, but mana will eventually run out, and archers shouldn't focus on griffins; strong units will remain (paladins, for example). In general, they are cool creatures.
It's not always beneficial for archers to attack paladins, as it's difficult; it's better to assign them to some tank and a unit of 7.
Archers usually attack those who are strong when there are many of them and weak when there are few.
