Note: The info in the guide is based on the known stats and behavior of the monster, and might not be accuarate.
The Grokus is an epic tanking looter. They can usually take enough damage to loot a considerable amount. However, their slow speed makes Valgos and Spurtz for clearing antifling vital.
They might be able to tank, but with the low damage and speed, they can't really do much damage to enemies, especially when the enemy uses long-ranged monsters.