I have been messing around with this druid I created based on the one Deckster did. It actually is pretty good and fun to play (and also hard)

Your win conditions are Solar Eclipse combos (Arbor Up, Cenarion Ward, Nightmares) and Yogg as a panic button. In some matchups Gidra + Arbor Up (if possible with a solar eclipse also) it can also win games. But as the name implies, Resizing Pouchs can also be win conditions on itself. Here are some examples of how to use it:

• At 10 mana with discount from Nature Studies, A LOT of times it'll give you an additional Yogg. I once won a game with 3 Yoggs lol.
• At 10 mana without discount it will give you Alex, Onixia, Ysera. Lots of good cards.
• At 9 mana without discount you can get either Cenarion Ward or Guardian Animals
• At 6 mana without discount you can get the 5 mana beasts
• At 3 mana without discount, eclipses
• At 1 mana without discount, lightning bloom is a good catch. Or pounce against agro or for that extra lethal damage.

There are tons of uses for Pouch, you just have to be aware of the pool (and pray a little lol). The only spot I didn't saw any use most of the times it's with the 6 mana pool. You can get maybe a Claw Machine, but not much else.

Stones are in the deck for filling curve and gaining board presence on early game. They are bonkers, I don't know why they're not being used. You almost always will get 2 minions from it, and excepting the one with spell damage, most of them are useful. Divine Shield and Poison are the bests IMO.