Dark Elves rule! :)
Scouts are the strongest at level 1 and are great against melee units.
Assassins are the same, but with poison.
Hunters are the same, but they don't shoot and are good against ranged units.
Beasts are fast.
Furies are fast and retaliate.
Megeras are the same as Furies, but stronger.
Minotaurs are walking tanks.
Guardian Minotaurs have two attacks = a walking nightmare.
Overseer Minotaurs are for when the hero is feeling down.
Lizard Riders - dinosaurs didn't go extinct!
Dark Riders bite for any reason. And that's a good thing!
Swift Riders have cool tridents.
Hydras are like Cerberus, but slower and larger.
Cave Hydras are like a Balrog: the biggest mistake is to surround it.
Dark Hydras - don't hit it if you don't want acid in your eye.
Twilight Witches have the best ratio of ranged attack/magic.
Shadow Lords are the same, but know more spells.
Night Hags are death lurking in the shadows.
Twilight Dragons are the best dragons you can find.
Black Dragons are the best creature in Ashan.
Red Dragons are the only ones I absolutely didn't like.
That's it. :D