I think the new champions need a bit of rebalancing.
I don't mind the idea of cycling the champions each season, I actually enjoy the learning curve, but I don't think this new collection was balanced properly before release. I understand that there are always certain champs capable of hyper-carrying, but no champ should actually be EZmode.
The problem is that mid-game, even when I have a full team of tier two champs, carefully crafted team synergy, and made intelligent use of my items, I'm getting utterly thrashed by people that got lucky enough to get one or two tier three champs despite the fact that they have little to NO team synergy, obviously have no idea what to do with their items, and pay absolutely no attention to the placement of their units. No unit should be getting such a power spike at tier three that they can wipe teams that SHOULD be a clear-cut counter to them.