No he doesn't have knowledge about amaterasu he will doesn't know about it and he doesn't know about itachi's susano and what's jiraya gonna do fight Itachi blindfolded
First of all, I'm not blind and stop wanking the fuck outta Itachi, Second, using slurs can get you banned dumbass, Third, you had to pull up that video because you couldn't debate for your fucking self
Where was it stated that Pain was scared of Itachi? The only reason he destroyed Konoha after Itachi died was because Konoha started to find out how the Six Paths of Pain worked