Just notice that i have forgotten to explain the Thorn and Block synergy on tooltip, it's actually one of the first synergies i added. Block prevents Thorn to be removed, but Burn bypass that when Burn is applied to to counter Thorn you can apply Burn, i am planning to add more Burn items. Thorn was one of the hardest thing to balance when i made the Desert Update.
Gonna add upgrade to health potions and the other potions but i don't want a player to just turtle with it and end every combat with full health. When it comes to SUM/10 abilities, a good combo is to apply weakness to yourself so you can apply more dices, it's a risk vs reward type of approche.
You can get armor slot on Sorcerer with help of the blessing Two-Torso, main goal with different character's is to give different start positions for different types of builds, but i try to tweak them if they are too unbalance.