Final Defense = floor(Base Defense × (1 + ED%/100)). Ethereal adds +50% to base before this multiplication. So an Archon Plate (410–524 base) with +200% ED = 1230–1572 defense. With Ethereal: floor(410 × 1.5 × 3) = 1845 min.

For Fortitude armor: Archon Plate is the top choice — 103 str req, 4 sockets, elite defense. Dusk Shroud (77 str req) and Mage Plate (exceptional, 55 str req) are great low-requirement options. For weapons: Cryptic Axe or Thresher are popular on mercs.

Yes — ethereal items lose durability and cannot be repaired (unless the runeword grants Indestructible, like Grief in a Phase Blade). For armor runewords, ethereal items will eventually break. For merc armor, mercenaries don't count durability loss the same way. Plan accordingly.

When you insert runes to create a runeword, the variable stats roll randomly within their min–max range. A Grief might roll +340% or +400% Enhanced Damage. The simulator shows sliders so you can compare different roll outcomes before you farm the runes.

Bases are filtered to only show items that (1) match the runeword's allowed item types and (2) have enough sockets. A runeword requiring 4 sockets won't show 2-socket bases. Some niche types like throwing weapons or Amazon-specific items may not appear if they don't support socketing.

Yes — the URL updates automatically with your runeword, base item, ethereal toggle, and slider values. Use the Copy URL button in the Results step to grab a shareable link.