It hurts.
Mag, who was trapped underneath the octopus monster's tentacles, was numb all over from the lightning's strike. He couldn't move at all.
Although Bro Octopus had undertaken most of the lightning strike for him, he'd never expected that this octopus monster was a conductor. The tribulation lightning flowed to him indirectly after landing on the monster.
Fortunately, the tribulation lightning seemed to have passed through an octopus-shaped resistance as it went through the octopus monster's body before going to Mag's body. The electrical power seemed to be perfect. It achieved the effect of clearing the blood vessels, and prevented the horrible consequences of killing Mag immediately because the lightning was overpowered.
After being struck twice continuously, the unbridled octopus monster was finally scared. The tens of thousands of eyeballs spun around furiously, and stared at the top of the cave. It didn't dare to move for some time.