Everyone is ridiculous. The only problem with druid is the crazy amount of ramp they have now that they use nourish for ramp instead of card draw. UI isn't broken itself, it's how fast that they can play it that makes it unfair. Want to nerf druid but still stay true to some roots of it?
Nerf the ramping ability to be overloaded the next turn. I.E. play Wild Growth - gain empty crystal Overload(1)
Druid still keeps its ramp ability but slows them down to not completely out tempo the opponent. Do the same to Nourish(overload 2) and jade blossom(1) and mire(1) and druid will be managable again. No need to nerf innervate, UI, etc.
the only card they should've rethought about is spreading plague. Crazy amount of stall, completely unnecessary.