Modified version of https://wago.io/X_b78PkIc for WotLK level 80
5-Dec-22 Factors in Sigil of the Unfaltering Knight when equipped
EH calculation is only counting DR from armor against a level 83 attacker
11-Nov-22 I've noticed a quirk that if you swap between duplicate items the WA will not update - this presents an issue if you are using identical items with different enchants (eg two cloaks, one with titanweave and one with armor/agi/parachute). To force an update of the WA just equip a different item when making this type of item swap, until I update.