I assume this has already been discovered...but I didn't find a thread with both melfs and equalizer in the title SO...
Heres my discovery:
The equalizer enhances the THACO and damage of melfs minute meteors (physical but not fire damage).
I equipped Haer Dalis (not proficient in longswords but 2* dual wield so no main hand penalty) with the equalizer in his offhand then cast melfs summoning up 20 meteors as test subjects (twice...once for Aerie and once for Jaheira).
Then he pounded Aerie (LG) doing 7-9 damage and hitting more often than Jaheira (TN) 2-4 and less accurate. My testing method first ruled out fire damage (with cloak of mirroring which doesn't protect the physical). Then I tested to see if the fire damage increased as well (it did not).
Thus the alignment of the target affected damage and chance to hit (I had Aerie and Jaheira at identical ACs and missile/blunt modifiers).
so against CE opponents HD does up to 30 extra damage each round with melfs and hits 15% more accurately. Kangax beware!
Side note: melfs isn't reflected by the reflector shield.
So untill whirlwinds Haer is a good candidate to wield Equalizer! Even without proficiency in longswords.
Question: (I'll test it but thought I'd throw out a thought)...
Would Valygars b-stab damage be
[(Main hand damage) x multiplier] + strength + equalizer damage
OR
[(Main hand damage + equalizer damage) x multiplier] + strength.
Note: for those not into math the difference would be that the equalizer damage output would get multiplied (so extra 12 damage against a CE opponent with a times 3 multiplier). 12 damage might not seem like much but when killing a mage it can mean the difference between a dead (or panicked) mage and 5 spell trigger protected magical nussance. The extra 15% chance to hit helps you from doing zero damge of course!
myrophine