Rottem Golem:
1. They Sense Invisibility & you cannot paralyse it
2. They Walk through Poison fields, walk around Fire and Energy Fields
3. They have ability to Roots Player- means you will not be able to move at all for 3 seconds
4. They use Mainly Terra AoE attack spells, Melee,
Sources:
Tibia Fandom: Rottem Golem