I think Nunu's slow should scale slightly.

Proposed change: Nunu: E slow changed from 50% to 40/45/50/55/60%.

A large part of why Nunu is so good both early, mid, AND late, is because of his clear speed, reliable cc, and reliable engage/ganks. You can't outrun 600 ms at level 3, so I'm looking to see if Nunu's cc can be reduced in a reasonable manner in the early game, then return its power in the late game where he'll be used in teamfights when the slow part of the E feels lackluster/insignificant.

Right now, his early ganks are extremely reliable, but his late game E doesn't FEEL useful until you pop the E and root 2 or 3 enemies. By decreasing the slow early, it reduces his early game threatening presence, and by increasing it late, it increases the synergy with R and punishes bad positioning harder against enemies.

Obviously this is a small change. I don't know too much about the jungle, but I feel like this will help make nunu feel better to play and play against