Lao (part 1)

Lao is the final boss of Xenoblade Chronicles X. He is fought during Chapter 12.

After Lao stabs Luxaar in the back, Lao, Luxaar, and the Vita sink into the protoplasmic fluid inside the Lifehold Core. However, the Lifehold Core's final phase of defensive measures causes all life on Earth to flow inside of Lao, creating an uncontrollable body that tries to absorb all of the DNA from the Lifehold Core itself.

Lin initially tries to stop Elma and the party from destroying Lao initially, but when Lao states that the body is not under his control, she decides to fight the chimeroid Lao as well.

This phase is the fourth phase of the game's finale. Once Lao reaches half health, this phase ends. After a cutscene, the fight continues to Lao (part 2).