Serpent has 400 health and spawns in the ocean.
It takes extra damage from frost; it resists poison; fire and spirit do nothing to it at all. Blunt, slash and pierce land at full damage, so that is what to bring.
Its hardest hit does 70 slash, out of 2 attacks.
Some of what it throws is elemental, so poison resistance is worth having.
Of everything craftable, 
Frostfire Crossbow, 
Frostfire Sledge and 
Thunderblood Crossbow put the most damage through what it resists.
It always drops 
Serpent Meat and 
Serpent Scale.
Serpent is the only hostile creature that spawns in the Ocean, with 400 health and a swim speed of 10, beaten only by 
Bonemaw. It draws its head back and lunges to bite for 70 slash in a 3 meter, 80 degree arc every 10 seconds, and it keeps closing between bites rather than holding range. Fire does nothing to it and poison is resisted, while frost is the weakness. It drops 8 to 10 Serpent Scale and 6 to 8 Serpent Meat, and the 
Serpent Trophy at 33 percent, several times the 5 to 10 percent most creatures give.
Sail a Karve or better and keep a 
Finewood Bow rigged; they are weak to frost, so 
frost arrows end them fast later on. Serpent meat floats but scales sink, so harpoon the beast with an 
Abyssal Harpoon and drag it to shallow water before the killing blow if you want the full loot.
| Where | Roll | Group | Conditions |
|---|---|---|---|
| Ocean | 5% every 1000 s, max 1 near you | 1 | night only |
| Ocean | 5% every 1000 s, max 1 near you | 1 | weather: ThunderStorm, Rain |
Each 64 m zone keeps its own timer per entry and rolls the chance once per interval while loaded; a zone never loaded before rolls the moment you arrive. The spawn lands 40 to 80 m from a player, never inside a base unless noted, and "max near you" counts the loaded area around that zone. Dungeon and camp spawners are separate and not counted here.
With devcommands enabled, this spawns Serpent in front of you. The third number is the level: 3 spawns a 2-star.
Creature ID: Serpent · all console commands and IDs