Laned against Malz yesterday
As LeBlanc. Let me just say, the spell shield passive was literally the last thing giving me headaches. You can just auto attack it away as you would against a Yasuo.
But the minions proccing thunderlord's? Holy shit. My jungler ganked at level 3 and he nearly killed us both, when we landed all our cc and spells perfectly. He didn't even run, he KNEW he could 1v2 us. Now that's messed up.
Outside of laning phase he wasn't much more impressive than the old Malz though, all he ever did was try to suppress the ADC. We even won the game.
Point being, I think his spell shield is actually ok, it has decent counterplay, but those minions are busted.