Energy Strike (0-38+).
Damage Taken From Elements
It will keep its distance from you.
To complete the bestiary entry as quickly as possible, gather snowballs, carrots, and a team of people. Then, have each person repeatedly summon snowmen whenever they can, attacking the snowmen with poison field runes to minimize the damage to just 5 hp per hit. This way, up to 90 people can in theory group up, and complete the bestiary entry in less than 56 minutes.