Answer: lightningbolt

AnswerCrossword Clue
LIGHTNINGBOLTStorm phenomenon
LIGHTNINGBOLTIt's striking!
LIGHTNINGBOLTStorm striker
LIGHTNINGBOLTCaptain Marvel symbol
LIGHTNINGBOLTZeus' weapon
LIGHTNINGBOLTStorm phenomenon, sometimes