Neutrals, who are they?

Every player has at some point fought against or controlled neutral units. Everyone has their own impressions, please share them in this thread. There are 10 types of neutral units in total:
1. Fire Elementals
2. Water Elementals
3. Earth Elementals
4. Air Elementals
5. Wolves
6. Yetis
7. Mummies
8. Manticores
9. Death Knights
10. Phoenixes
Black Knights and Firebirds can be excluded as they are simply weaker forms of Death Knights and Phoenixes.