Cluster

The ground starts to shake...

Cluster has awoken!

Cluster is a rock monster boss summoned by Heavy Rock, or awakes if you are underground in post-plantera hardmode (1/100 chance every day). He does 80 damage, throws rocks that do 30 damage, has 40000 health, his second form is at 20000 health.

Drops:

40 Gold Coins (100%)

Rock Launcher (14.27%)

Pet Rock (14.27%)