explained changes WIP

STX Update

With this update, our cube finally becomes a real size cube with 360 total cards!
After some testing, we realized something:

• we need more interaction (with graveyard, but I went low on it)
• we need more wincons, since decking out opponent is okay but annoying on multiple games
• aggro needs some love

In future, cube size could be expanded but for now I would like to stick to the classic size. In order to do this, I had to make some choices:

• not include every "fun" (subjectively speaking) card in STX
• include cards from other sets in order to balance the amount of multicolored cards

About last point, I added 5 multicolor cards from Streets of New Capenna. This was solely for multicolor cards balance purposes, maybe in future SNC will be added and cards already in cube eventually reconsidered.

Card replacements:
Vivisection > Curate : vivisection is really bad and slow, curate should be less "fell bad" most of the time and can have graveyard sinergy as well.

Flunk > Reave Soul : flunk is a good removal in late since it can be playable early but it's very good. It's still in testing, it it reveals to be bad and/or problematic I will revert the change or modify it.

Moldgraf Millipede > Master Symmetrist: As said, I don't want to encourage waiting for opponent to deck out as a strong strategy, I want to try symmetrist as a beatdown option (millipede is just a conditional big dude with no keywords in that sense). I can reinclude millipede in future, for now I feel like it's right to remove it.

Watchlist
These cards didn't make the cut, but I can change my mind for them in the future (cards not in list are still an option but these ones have highest probability):

• Clever Lumimancer
• Professor Warning
• Plumb the Forbidden
• Scurrid Colony
• Kelpie Guide
• Solve the Equation
• Brackish Trudge