Ryuker
From Ephinea PSO Wiki
Ryuker is a support technique that creates a portal back to Pioneer 2. It creates a teleport gate that leads back to Pioneer 2. Like a
Telepipe, it only lasts until its user returns through it.
Unlike most other techniques, it has only a single level. It requires 150 MST to learn.
Ryuker cannot be used in certain areas, such as area warps, boss rooms and during certain quests.