Are these uncommons of any use?
Looking at a few guides, a few Uncommons get mentioned as potentially useful for early and mid game - though at present I struggle to find a use for them. I suspect the advice to develop these is a few years old, when monster boxes where a bit more limited - however, I'm aware that some, such as Armiger, have been mentioned as having useful end game use.
A few I'm unsure of whether to food or keep:
Spiritwalker
Shieldguard
Dervish
Sniper
Steel Bowyer
On that point, are there any Uncommons I should definitely look out for to keep and develop for early and mind game play?