I know, what I was referring to is if you have, for example, 10 Grenadiers, and the dragon kills all of them, you lose 60 recruits, where 20 for a dragon is ridiculously cheap. The dragon should have a respawn timer so someone with alot of recruits accumulated won't just spam the dragon even death after death.
Just kill 4 hunters with the dragon before dying, and you cost the enemy a lot more recruits then you did spawning your dragon, and you can just summon it again and deal even MORE damage.
