Thread:Ogbunabali/@comment-24503208-20190402172918/@comment-34492464-20190402173735

He can attack before Future Sight's attack lands, but he can't attack while casting it, as shown when he first used it. He was stationary and was wide open, and was hit, by an attack from Pikachu.

On top of that it still didn't help him hit, or dodge Pikachu's later attacks.