Your favorite and least favorite monsters in Heroes.

but 250 Imps will make the Warlock sit on the sidelines. A Mage without mana is useless.
And what can the Dryads offer against the Warlock? Nothing...

That's true, but Dryads have more initiative and can hold back the Imps in a swarm, while the rest of the army can approach the enemy... and if you create a Phantom too! And what are Archers for? To take down the Imps! :D