Adding a defender cluster/package inspired by Emma Partlow's peasant cube package.

I'd like to remove synergy exclusive cards like Wildwood Scourge as I want synergies to come about from cards that are just ok on their own and powerful with the syngery. Scourge is a x-1/x-1 if you aren't in the counters archetype which makes for not a reasonable pick in draft. In its place I swap Carven Caryatid as its a decent blocker on 3 against aggressive decks, is on rate as it replaces itself, and is amazing in the defenders package which now has a home in green.

Other cards that i've removed for the same reason are vanguard of the rose and hoverstone pilgrim.

I like the idea that thermo alchemist can work in both a spell slinger deck or a defender deck. Its possible to see a red-white defender deck running this card but more often than not it will probably be an izzet card or splashed in the defender deck. It can also be as effective as sunshot in aggro decks that don't go wide. Testing is needed