Pterix Energy Eggs are rare materials in Xenoblade Chronicles. They can be dropped by Pterix on the Fallen Arm, or traded for.

Two are needed for Lifespan of a Machina.

Needed for




NPC Area Affinity
Zarkort Fallen Arm 2

Dropped by

Enemy Area Rate
Wicked SallosFallen Arm75.0 %
Lelepago PterixFallen Arm32.3 %

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