Hey, I've been playing this mod with friends a few times, both of us very experiences STS players, and I've found some of the balance choices/mechanics of the mod rub me the wrong way.

Overall, Ironclad is just too strong, followed by watcher. Ironclad has access to the strongest potion in the game- The Blood Potion. Due to how the HP cap per turn is implemented, by drinking a Blood Potion on turn 2, you just can't be killed for another turn, period. Personally, I believe the Blood Potion should be reworked to increase the invulnerable stacks of the player drinking it by the same amount they healed- That way they aren't getting a free extra turn unless they can manage to protect themselves sufficiently that turn.

Secondly, self-damage is almost always worth taking against an opponent of sufficient skill. In general, any player with a moderately well constructed deck will be hitting that damage cap each turn of combat, and since your damage cap isn't reset between your turn and the enemy's turn, there's almost no reason not to take self damage. Again- I love the damage cap, it helps negate ohko-s, but it causes some other issues, we need it to reset between turns.

Now, aside from the issues I have with Ironclad, Defect is very weak. I have no suggestions to fix this at all, it's just an observation.

I hope all this came across with the love it's intended to have- This mod is a great deal of fun and I really want to see it reach the best form it can!