Is Gyro Ball any good on Musharna that run Hypnosis and Dream Eater? I'm asking because I don't know if Gyro ball gets more powerful with an higher Attack.
Gyro ball is useless on Musharna, although it has higher power because Musharna is slow, but for one thing it's attack is horrible, and for another steel moves dont provide enough coverage. See here for movesets for Musharna
Hope I helped