Of all the six Artifacts of spiritual power, Confining Spell in AFK Journey is an all-rounder, usable in Arena, Battle Drills, Legend Trial, AFK Stages, and so on. It wouldn't be wrong to say that it's the best Artifact in the game, the S-tier. The only spell that can rival it is Starshard, which is also beneficial in almost all game modes.
How to Get the Best Artifact in the Game | AFK Journey
While there are many ways to collect Confining Echo Shards, there are only two ways to obtain and activate the spell. Wondering what they are and where to find them in Esperia? Here's a detailed guide on that.
The Confining Spell is a reward for the quest "Deer Spirit Blessing". You can get this quest in Vaduso Mountains 4 on AFK Stage 545 and Resonance level 120.
Aside from the quest, the Trolley is the only way to unlock this spell. In the Trolley, you need to buy the Artifacts Bundle with a purple pendant-like item. Once you have bought it, go to the Artifacts section of the Resonating Hall. There, select this spell and click Activate to use it.