File:Skeletron Primer.png

Summary
Head - HP 70000 Primer Vice - HP 60000 Primer Hand - HP 67000

Skeletron Primer is a war mode boss that can be summoned with a blue eyed skull and it's half normal half prime and after defeating it, the prime chest guardians will be gone.

Defense

Head 97/2997 (daytime) Vice 76 Hand 87

if it's daytime and the boss is still there it will be like a dungeon guardian and every weapon does 1 damage.

Damage

Head 91/29997 (daytime) Vice 100 Hand 90

Speed

Head (spinning) (same like dungeon guardian)

Drops

Soul of Right Hellstone in a bottle Primer Bar

Message when it summons itself "The Cold air is getting worse"