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.
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.
The chance of awakening a Rare Blade follows this equation:
Probability (as percent) = max((sqrt(LUCK)*0.01*1.3)+0.95,1)*0.01*(100 + 5*[Idea Multiplier])*[Core Rarity]*[Base Probability]
Base Probability is determined by the group a save file is placed in upon creation.
|Blade||Group 1||Group 2||Group 3||Group 4||Group 5|
|New Game + Only|
Core Rarity is determined by the type of Core Crystal used.
If a Common Core Crystal is used, the algorithm is multiplied by 0.25.
LUCK is the Driver's Luck Stat.
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.
On top of all of this, a Pity Timer is used to grant Rare Blades to those who are not getting lucky. The group the player's save file is in determines what Rare Blades are gifted.
|1||Godfrey, Agate, Boreas|
|2||Perceval, Azami, Adenine|
|3||Gorg, Perun, Electra|
|4||Kora, Nim, Finch|
|5||Vale, Ursula, Floren|
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.
At 100 points, the player is gifted a Pity Blade. After another 200, they are gifted another. After another 300, they are gifted their last.
The game automatically chooses one Rare Blade out of the list to test for. If the game chooses a Rare Blade that has already been gotten, it will automatically make the player draw a Common Blade.