Gem golems are the collective name for a group of hostile mobs made of gems in Sad's Fanon.
Gem golems take 75% of damage from tools other than pickaxes. When a pickaxe hits a gem golem, it will only be damaged by 1 durability point instead of 2, the normal damage for a pick hitting a mob. This means that pickaxes are the best tool for attacking gem golems.
The Pepsi Gang is the collective name for Cobalite and Bloodstone golems. They are named together because they are a formidable force to battle when multiple of each golem are attacking.
They are called the "Pepsi" Gang because Cobalite Golems are colored blue and Bloodstone Golems are colored red.
Cobalite Golems have a 20% chance to spawn from Cobalite Ore when mined.
They are considered the "attack" of the Pepsi Gang.
Bloodstone Golems have a 20% chance to spawn from Bloodstone Ore when mined.
They are considered the "tank" of the Pepsi Gang.