Interlink

Interlinking is an ability in Xenoblade Chronicles 3. It allows two Ouroboros or Moebius from opposite nations to fuse together to form a stronger single entity.

Description
Interlinking has different mechanics depending upon whether the Interlinking pair are Ouroboros or Moebius. In the former case, an Interlink is required for the pair to take their Ouroboros forms, and each form is strongly associated with one of the Interlinking pair. On the other hand, Moebius may take their Moebius form without an Interlink; instead, the Interlink combines the two Moebius forms into one seemingly associated with both members of the pair.

In either case, both a Kevesi and Agnian must be present in an Interlinking pair. In the case of Ouroboros, each member has a specific Interlinking partner, and they seemingly cannot form an Interlink with other Ouroboros of the opposite nation. It is unclear whether the same applies to Moebius, or if they may freely Interlink with any Moebius of the opposite nation.

During an Interlink, each member of the pair seemingly appears in a swirling yellow-hued space in which the memories of the Interlink partner can be seen and heard.

If an Interlink is maintained for too long, the Interlink form begins to overheat; it visibly becomes red-hot, accompanied by a persistent alarm-like beeping. Continuing to maintain the Interlink results in an annihilation event centred on the form.

Story
The first known Interlink to occur is when N combined the power of his sword with Matthew's gauntlets, to let Na'el, Nikol, Glimmer, Shulk, and Rex Interlink to deliver the final blow to Alpha.

Many years later, Guernica Vandham despite mortally wounded by D unleashed the power of the Ouroboros Stone, transforming the party into Ouroboros and allowing Noah and Mio to Interlink for the first time to defeat D. After D's departure they cancelled the Interlink.

As a gameplay element
The second phase of the first battle against D and J has Noah and Mio remain in an Interlink for the entire phase.

Interlinking becomes generally available in battle during the battle with Consul K; initially only Noah can Interlink with Mio. After defeating Consul K (before the battle with Moebius K), Eunie and Lanz gain the ability to Interlink with Taion and Sena respectively as well. After defeating the Lambda Ferronis, the three Interlinks each gain another form associated with the Agnian in the pair; from this point, they may also be used in s.

Moebius Interlinks, when they occur in gameplay, are treated as entirely separate fights; Moebius enemies do not enter and leave an Interlink mid-battle like the playable Ouroboros.