^ yes slys level 1 can't be interrupted at all.
I'm sure people have said it before me, but his level 1 can be interrupted. It happens to me occasionally. Its just EXTREMELY hard to interrupt.
I just watched the live stream and one of the questions I asked that got answered was "Which characters are you looking at next in terms of balance?" Omar listed Kratos, Raiden, and Drake. SuperBot is really great at responding to fans it seems because all of my questions were answered. Gotta love a group this dedicated.