Talk:Zero (Omni)/@comment-26587932-20160713030651/@comment-2061246-20160713140501

That's called a Cross Spark, which generates Resonance.

See more about it here:

http://bravefrontierglobal.wikia.com/wiki/User_blog:Crimson_Storm_Mich/Guide:_Omni_Evolutions:_Cross_Spark_and_Resonance