This is so op. You can also use a grim curse instead, but it’s rarer. Glyph of stone on armor compensates the low level for scroll dumping the ring (it was originally a Ring of Wealth)

    • There are always 15 upgrade scrolls in the game, 3 for each dungeon theme. (Likewise there are 10 potions of strength, 2 in each group of 5 levels)

      A few upgrades from the Troll Blacksmith quest.
      If you upgrade something that’s already >= +1…

      Often enough, I start using scrolls around wherever the Blacksmith is.
      Then again hoarding upgrades for too long can make it hard on other resources and ultimately make for a failed run. There’s a balance to strike between upgrading now vs later.

      Outside of lucky RNG and broken combos, I usually ask for +6 a few things instead of +18 one thing.