are they only situational picks?
meaning if enemy laner has mobility/is an assassin, just forget about it?
i'm talking the likes of xerath, vel'koz, etc
i tried vel'koz for the first time yesterday and my biggest issue was how was i supposed to survive ganks, or assassins allins? barrier, E knockup and hope for the best?
i'm new with those kind of champions so any advice would be appreciated