Each monster in Monster Legends has a single element or combination of 2 elements.
There are ten elements in Monster Legends.
The element which a particular monster belongs to determines which of the habitats it can be placed in after being hatched. Monsters must be placed in a habitat that corresponds to their element. Hybrid monsters may be placed in either habitat corresponding to either of its elements. Legendary monsters may only be placed in legendary habitats.
Monsters are restricted from leveling above Level 10 without the aid of a temple. These temples must also correspond to the element of the particular monster that the player wishes to enhance. Hybrid monsters require temples of both elements before they can level up.
A monster with a single element cannot breed with a monster that contains its "opposite" element:
Instead, two hybrid monsters must be bred together. For example, Firesaur and Light Spirit cannot breed together. Rather, a hybrid monster with the fire element can breed with a hybrid monster with the light element. Special and metal monsters have no opposites or breeding restrictions.
Each element deals double damage against a monster with the corresponding weak element:
Each element is also weak against itself and deals half damage. Dual element monsters typically have the combined weaknesses and resistances of both elements. However, if an attack would be both strong and weak against a hybrid monster (if a fire skill targeted a nature/fire monster for example), the weakness will override the strength and the damage will be halved.