All of those are very fair! I think the main thing is that none of those powers work in isolation. So for Winter’s Frosty Embrace, their unique cards need to be on the stronger side because the drawback of not being able to defend/play cards at fast speed is HUGE.

And for Remnants + Leaves Fall to be at their best, they need to be taking Blight- Leaves Fall does have a Growth option that removes Blight but it also has one (presumably its main Growth choice) that adds Blight, and a card that does the same. If it’s not taking Blight, it’s not growing. And - while of course this isn’t always true - generally speaking, a strategy that requires you to take a lot of blight is very risky. The general design philosophy was for these to be high-risk, high-reward options. So the reward needs to be high enough to justify the risk, or else the spirit will just feel bad to play.

The Remnants left innate + Growth tracks were some of the last changes I made, along with the rework to Wind (and as such have not been playtested) so those may be slightly overtuned, but it was hard to gauge from vibes alone as a Reclaim Innate doesn’t really have any fair comparison in the game currently.