Gearhead

gearhead is a hard-mode boss

can be summoned by finding 3 gear fragments

once you get the gear fragments you can craft a rusted cog, then use the rusted cog to summon gear head

stats: 4,500 hp, 10 defense, 100% knockback resistance

attacks: hovers above you then starts trying to throw one of the gear fragments down at you, if you do get hit it will do 75 damage

starts spinning its cog and moves slowly towards you, if you get hit it will do 125 damage

throws his whole body at you at high speed and returns like a boom-a-rang, if you get hit it does 175

expert mode stats: 14,000 hp, 50 defense, 100% knockback resistance

loot: gearhead trophy 100% chance, gearhead treasure bag [expert mode], rustic ore [30-55] 100% chance, rusty gear 43.7% chance, cog staff 43.7%