White Serpent & Crimson Viper.

Bai Chilian, Lady of the Twin Serpents, once owned White Serpent & Crimson Viper, a set of snake-like blades.

One blade is long, the other short. Light and agile describes the short one; the long one is winding and powerful. Together they wind round one another like a pair of snakes, and using either alone is not intended, since a single blade makes only half a snake.

Each blade of this weapon has its own share of the work. The long one covers the area right in front of you, whereas the short one covers what lies between you and your target, which produces a steady stream of varied combinations. Its principal art whirls the short blade around you as a biting ring. Players who want to attack without letting up while draining the opponent's Sha-Chi will find it suits them.

You obtain it as Crimson Forest ends, and it ranks among the weapons that deserve early upgrade investment.

Because Phantom Blade Zero has no published 0–100 bars for stats, this page gives the weapon's numbers as they stand at level 1.

These numbers are taken from values the game itself lists for level 1; they were not confirmed through play.

Before you start:

• Get to the end of Crimson Forest
• Defeat Bai Chilian

1. Make your way through Crimson Forest to the closing battle against Bai Chilian, Lady of the Twin Serpents; it has two phases.
2. Her defeat hands you White Serpent & Crimson Viper, plus the accessory Resonance Talisman.
3. Following the cutscene, you regain consciousness at the Village of Lu, next to a Bell shaped like a crane.

How Crimson Viper Orbit works

With Crimson Viper Orbit the short blade whirls about you. Rather than hitting once like a throw, it loops as a biting ring and drains Sha-Chi the whole time it is in motion. Should Sha-Chi hit zero, the blade is dragged back forcibly. Recalling it by choice is also possible.

Recall and the Hundred-Knot Serpents

Recalling is more than an empty gesture. After Soul Tempering into Hundred-Knot Serpents, pulling the short blade back conjures serpents that lash out suddenly, and a longer absence of the blade means a greater number of serpents.

Ranged Execution and Twin Serpent Frenzy

An enemy who stands far away with little HP left can be finished off across the distance by Ranged Execution. Twin Serpent Frenzy, which takes 1 Sha-Chi, is a skilful chain of coordinated strikes from both blades, and no block can stop it.

Perks from levelling

These are unlocked as the weapon gains levels, between Lv. 5 and Lv. 30.

Soul Tempering

Cost of each upgrade level

Going from Lv. 1 to Lv. 60 takes 59 upgrades, and reaching +59 costs 2,206,035 Remnant Dust in total.

Strengths

• Relentless offence: while the long blade fights at close quarters, the orbiting short blade continues to land hits, leaving few pauses.
• Lowers the enemy's Sha-Chi as you maintain the pressure.
• Low-health enemies beyond your reach can be killed with Ranged Execution.

Weaknesses

• Since Crimson Viper Orbit drains Sha-Chi without stopping, your other arts must share that same resource with it.
• Running low on Sha-Chi pulls the short blade back by force, which may cut a pressure window short.

Best used for

• An aggressive style that aims to never stop attacking.
• Combination with Fiend Saws for pressure: White Serpent & Crimson Viper keeps the heat on and lowers enemy Sha-Chi, and you change to Fiend Saws as soon as an opponent leaves itself open.
• Teaming up with the Hunter's Chain Sickle and Iron Gauntlets Phantom Edges suits offensive fighting.

Bai Chilian, Lady of the Twin Serpents, owned the pair, and its name reflects the two blades, one long and one short.