Which monster do you like the most in Heroes 5 at level 5?

I completely agree with Arengar! Moreover, their initiative is probably the highest in the game – no matter what faction I play, Nightmares always go first! By the way, a single Nightmare defeats a Hydra in a 1-on-1 battle. Even though the Hydra has almost twice as many hit points, by the time it moves its tail, the Nightmare manages to move twice; plus, it reduces the Hydra's morale and periodically frightens it! Only a Unicorn, with its blinding ability, might be able to compete in a 1-on-1, but I still vote for the Nightmare!