Wuthering Waves Game Guide

Fusion Burst Effect: I

Some Fusion attacks will apply a stackable "Fusion Burst Effect" to the target.

Fusion Burst Effect: II

When "Fusion Burst Effect" is stacked to its max, all stacks will be removed to trigger an explosion, dealing great Fusion DMG to the target. Dodge attacks to avoid the accumulation of [Fusion Burst Effect] stacks.