Fire Elementals

Fire Elementals are entities consisting only of fire. They have been spotted in the wake of demons, and nobody knows whether they are summoned by them or whether they are independent creatures rising out of fire. They are very dangerous fighters and create fire fields or shoot fireballs at their opponents.
Fire Elementals have 280 hitpoints. They are immune to fire and they cannot be paralyzed. It takes 690 mana to summon or convince these creatures. In addition, they are able to sense invisible creatures.
Fire Elementals yield 220 experience points. They carry nothing with them.