[Alpha]

I think he can still be attacked, but at the same time it happens a bit faster, so you aren't as vulnerable as Zac is. He really is quite strong...especially with the toggle on his W adding in damage.

It's really up to you...if you enjoy playing melee champs, I have a feeling you would enjoy him. There are tradeoffs with him though....he can die very quickly if you don't keep an eye on his health.

Edit: I stand corrected...he is indeed invulnerable while reviving.