1. checking @battlestats, wearing Monocle of Vitality (Ungoliant Card) + MIR of Pyschic (Jewelry Ant Card) it doesn't add up by 30%.
2. Testing actual damage at Dummy Egg and comparing damage with double Dwigh Card (Dwigh 20% Neutral & Shadow Magic). For this test im using Comet (Neutral Property Magic) with Recognized Spell buff.
I. Using Dwigh Magician Glove, Dwigh MIR damage = 27240
II. Using Dwigh Magician Glove, Monocle (Ungoliant Card) + MIR (Jewelry Ant Card) damage = 23480