Crackler is a monster. For the Osamodas summon of the same name see Crackler (summon).
Cracklers are mid-level species in Wakfu, they look like animated rocks. Crackrock Level 40 Crackler Level 45, does around 70-100 dmg and summons larva Ancestral Crackler Level 50, does about 100-125 dmg. Musthave for level 50 osamodus. They reside in the Holey forest in Amakna.