Its a real counter attack, it makes the emperor EASY to beat. When he hits you with lightning, block just before the lightning and you'll send it right back at him. Sooo yeah, counter attacking works.
"That kid, he told me the natural sky scared him. As I thought, it felt fulfilling. Those wings, give them to me too. Because it kinda feels... nice. If you meet Aerith, I'll be counting on you. Hey... Now I've become a hero, right?" - Zack Fair
"Live. You're the evidence that I lived. My pride and dreams take them all." - Zack Fair