The Slayer's Armor Set, also known as Sea Beast Armor, is a Legendary Chroma armor accessory with a 1% drop chance from Sea Serpent at First Sea Rough Waters It gives +75 extra HP, +2 stamina regen and +1% base reduced damage along with +0.5% every 100 levels with a maximum of 3.5%. The level requirement to trade it is 300+.