There might be no limit on how many Echoes players can farm inWuthering Waves. However, having a long list of repetitive and useless creatures is not on any fan’s wish list. Luckily, there’s an invaluable option inWuthering Wavesthat lets players farm Echoes without cluttering their Data Bank: Data Merge. Using this fusion tool, players can combine Echoes to create new ones with possibly better stats. Here’s a comprehensive guide to making the most of Data Merge.
What Is Data Merge in Wuthering Waves?
Data Merge is a fusion tool that lets players combine five creatures into one. It works similarly toGenshin Impact’s Artifact Strongbox but with higher RNG, as players cannot choose the desired set or type of the merged Echo.
To activate the merge, players must insert at least five Echoes into the device. Therarity of the fused Echodepends on the players’ Data Bank level, not the rarity of the materials used.

How to Unlock Data Merge
To unlock the Data Merge device, players must reach Data Bank level eight. Once this requirement is met, the option will appear in the Terminals under the Data Bank menu. The Data Bank level increases each time a player absorbs a unique Echo, including higher rarities of an Echo that has already been captured.
How to Use Data Merge for Combining Echoes
After reaching Data Bank level eight, go to the Data Bank menu in Terminal and select the last option from the sidebar. In the Data Merge menu, choose five Echoes of any type and press Merge to get a new variant. Note that the results are random. Therarity and value of the merge materialswill only increase the chances of getting Extras, which are additional Echoes that can emerge from a fusion.
Tips and Notes for Using Data Merge
While Data Merge is a great way to repurpose unused Echoes, it has its own risks. Before combining their Echoes, players should be aware of the rules of Data Merging inWuthering Waves:
It’s best to only merge Echoes that the player has no plans to use. 1- to 3-Star Echoes are good choices for merging, while4-Star and 5-Star Echoesshould be kept in the inventory and not merged.



