>>30203804Same battle theme and Ultra Beast turned normal Pokemon thing as the other Cosmog evos.
"Nekrós" literally means death, a dead body, dying person, etc and it slept underground until recently.
Outright said in the game that Cosmog was in danger of dying.
Dex entries call Necrozma extraordinarily vicious, and in battle it periodically grasps its head like it's in agony.
In short, if you even think of overclocking Necrozma with mega evolution it'll punch your teeth out.