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XC2-Drivers-and-Blades

Drivers and Blades relationship

Blade Resonance is a mechanic in Xenoblade Chronicles 2. Drivers can resonate with Core Crystals to awaken new Blades and increase their possibilities. It is not possible to anticipate what kind of Blades will be created from a Core Crystal. Weapons and arts granted to a Driver depend on the awaken and selected Blades. Drivers can bond with multiple Blades and use three of them during battle. It is possible to switch Blades in order to obtain more combinations allowing more playstyles. Certain special Core Crystals obtained during the story progression or quests always awaken a specific Rare or Legendary Blade. Some of them cannot be used for a long period after obtaining them.

Requirements

Only those who are worthy may have a resonate with a Core Crystal. If they are not worthy and try to bond with a Blade, they will simply be knocked out unconscious or have some bad temporary negative effects.

Rare Blade Probabilities

Each time a Core Crystal is resonated with, the game generates a list of four Blades, out of which three will flash above the Driver and one will be awakened (which may or may not have appeared in the aforementioned flash). The chance of a Rare Blade being selected follows this equation:

Probability = max((sqrt(Luck stat) * 0.013) + 0.95, 1) * 0.01 * (100 + 5 * [Idea Multiplier]) * [Core Rarity] * [Blade Base Probability]

The Idea Multiplier uses the Driver's highest level Idea Stat, and only applies to Blades of the corresponding elements. If two Idea Stats are equal, the game chooses one at random. If a Booster is used, the boosted Idea will be used.

The base probability for each Blade is determined by the group a save file is placed in upon creation.

Blade Group 1 Group 2 Group 3 Group 4 Group 5
Godfrey 0.63 0.63 1.25 1.56 2.19
Perceval 1.6 0.25 0.5 1 1.75
Vale 0.75 0.25 0.25 0.25 0.25
Agate 0.25 0.38 0.75 0.75 0.13
Gorg 1 1 0.5 1.5 1
Boreas 0.25 2.13 2.13 0.56 1.19
Dagas 0.5 0.75 0.5 1.25 0.5
Perun 2.44 0.25 0.63 1.88 1.06
Kora 0.63 1.88 1.88 0.31 1.56
Azami 0.31 1.88 1.25 1.88 0.25
Ursula 2.25 0.63 1.25 1.88 0.25
Newt 0.25 0.25 0.25 0.25 0.75
Nim 1 1 1.75 0.25 1
Adenine 1.5 0.25 1 1.75 0.5
Electra 1.88 2.25 0.63 1.25 0.25
Zenobia 0.25 0.75 0.25 0.25 0.25
Finch 0.5 1 1.75 0.25 1.5
Floren 1.75 1.5 1 0.5 0.25
KOS-MOS 0.1 0.1 0.1 0.1 0.1
Dahlia 0.13 0.5 0.25 0.88 0.75
T-elos 5 5 5 5 5
New Game + Only
Akhos 0.25 0.25 0.25 0.25 0.25
Patroka 0.25 0.25 0.25 0.25 0.25
Obrona 0.5 0.5 0.5 0.5 0.5
Perdido 0.5 0.5 0.5 0.5 0.5
Cressidus 0.5 0.5 0.5 0.5 0.5
Sever 0.5 0.5 0.5 0.5 0.5

If a Blade that was previously awakened from a special Core Crystal is released, their base probability is set to 1.

Core Rarity is determined by the type of Core Crystal used.

Core Crystal Rarity
Common Core Crystal 1.0
Rare Core Crystal 1.5
Legendary Core Crystal 3.0

If at least one Rare Blade is on the final list when a Rare or Legendary Core Crystal is used, the final selection will only be made from those Rare Blades.

A "pity timer" is used to grant Rare Blades if the player uses enough Core Crystals without obtaining a single Rare Blade. Whenever the player opens a Core Crystal without a Rare Blade, points are added to the timer. If a Rare Blade is acquired, the timer resets to 0.

Core Crystal Points
Common 5
Rare 25
Legendary 50

At 100 points, the player is gifted a pity Blade. The second Blade is obtained at 200 points, and the final at 300. The pity Blade is selected from a pool of 3 Blades, which are determined based on the group. If the player has already obtained the chosen Blade, a Common Blade will be generated instead.

Group Blades
1 Godfrey, Agate, Boreas
2 Perceval, Azami, Adenine
3 Gorg, Perun, Electra
4 Kora, Nim, Finch
5 Vale, Ursula, Floren

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