Flamerats are first encountered on B16F, the first floor of Sandy Barrens. These monsters usually appear in groups of 3, often accompanied with a Sabremaw. As they are weak to Ice-Type damage, an Alchemist with Cocytus can be quite effective to defeat them in 1 turn. They have as largely annoying skill called Blaze, which is weak to a strong warrior, but if you are trying to level up a weak party member to kill a boss, it is not efficient to fight them, as it is normally a 1-hit kill on anyone under level 30.