I think I hate this Preseason.
Nothing beats a Locket Redemption Mikael's support Nautilus who goes from 10% HP to having 2k in Shields and healing for 700 out of nowhere.
Locket was way overbuffed. Yes, I'm aware that the old MR aura provided 300+ effective health, but the new shield is so high, protects against all types of damage, and scales with your resistances, where as 15 MR was a flat value and did not scale as much.
Redemption's heal is rather high.
Courage of the Colossus is way too strong. 190 + 35% of your maximum health in teamfights for landing a hard CC?
Yes, I know it's Preseason and that things are in flux...But I don't think I've seen a preseason where things were this hilariously overtuned.