Cutting some low-picks and slow cards for more synergy + balance.

Balance update, more storm support

Kaldheim had lots of cards that fit this cube thanks to the new changeling cards. I've also gotten to playtest a little bit and found some cards like Nev Disk to be too powerful. Additionally, black was bit too grindy, so I've given it just a bit more aggresive tools while removing some of the more grindy cards.

The other changes are mostly related to balancing and removing some of the lower picked cards with cards that enable more midrange strategies, or to help out the +1+1 counter archetype.

I'm also going to test out fauna shaman, but I'm worried it'll be too powerful for this enviroment.