Every exmon is classified into Tiers that limit their maximum power.
Tier 0: They are the weakest exmons. Because they have a complicated temperament, they do not collect EXCOINS, only resources tier 0. Furthermore, they are unable to level up, always maintaining the same production. They do not have card slots.
Tier 1: Common category between exmons, can be obtained from the . This category has the potential to reach level 10 and farm tier 1 resources and EXCOINS. They have 1 slot for cards.
Tier 2: Uncommon category among exmons, they can be obtained from founder boxes or through the fusion of two level 10 tier 1 exmons. This category has the potential to reach level 20 and farm tier 2 resources and EXCOINS. They have 2 card slots.
Tier 3: Rare category among exmons, they can be obtained from founder boxes or through the fusion of two level 20 tier 2 exmons. This category has the potential to reach level 30 and farm tier 3 resources and EXCOINS. They have 3 card slots.
Tier 4: Epic category among exmons, they can be obtained through the fusion of two level 30 tier 3 exmons. This category has the potential to reach level 40 and farm tier 4 resources and EXCOINS. They have 4 card slots.
Tier 5: Legendary category among exmons, they can be obtained through the fusion of two level 40 tier 4 exmons. This category has the potential to reach level 50 and farm tier 5 resources and EXCOINS. They have 5 card slots.