189k per hit is impossible on a full reduces char using Pre-Renewal formulas on something called plausible:
Damage = SkillLevel x [ A x (1 - B) x (1 - C) x (1 - D) x (1 - E) x F x G [ H x 0.7 x INT x INT x VIT / (INT + VIT) ] ]
A = 0.5 for player, 1 for monster and else
B = race reduction gear/card (0.3 Thara Frog Card, 0.1 Poopoo Hat, 0.05 Zealotus Mask, 0.1 Combat Knife)
C = element reduction gear/card (0.75 Ghostring Card)
D = neutral damage reduction gear/card (0.2 Raydric Card, 0.1 Noxious Card, 0.5 Deviling Card)
E = anti-sniping gear/card (0.05 Alligator Card, 0.35 Horn Card, 0.1 Noxious Card, 0.1 Long Mace)
F = WoE reduction (0.6 for WoE maps, 1 for PvM and PvP maps)
G = 2/3 for players with Assumptio, 1 for players without Assumptio
H = 2 for Lex Aeterna, 1 otherwise
INT is the biochemist INT stat
VIT is the target/enemy VIT stat
Values in bracket are rounded down (floor mathematical function)
You can do the math, it will give something over 20k INT in a normal non-bg max reduces char if I didn't made any mistakes.
Per AD with lex and all the crazy buffs available on a 0 reduces char? Nop, that 33 vit makes it impossible.