Just a cut and paste from EQCasters. I hope you don't mind Baelish :)
MORE ON THE GLOWING STEIN</FONT></STRONG><P><FONT face="Arial"><SMALL>More
details for you on the stein. The new <B>Stein of Moggok</B> as well as
being a 7/43 1 Hand Blunt Weapon does still retain the <B>Glowing Stein</B>
bonuses of +10 Int +5 Dex +10 HP and +20 sv Disease.<P>
GM's have confirmed the Quest difficulty is also being increased when the
new item is implemented. One great side effect of this is that you can now
wield the stein in a primary melee slot (since its primary only) and be
safe from the charm-morph bug.<P>
This is actually an improvement of the item. Those lucky enough to have
both a Glowing Black Sphere and a Stein have hit the jackpot now. Complete
safety near charming monsters and 19 int. Combining with the Crude Stein
is also popular with Enchanters.<P>
I would advise getting a stein before the patch if you want one though
because Verant's definition of "harder" can be an understatement (eg: Plane
of Fear)