I know of 2 Glitches in Diablo II.

1) Put a ! in front of your text and it will put the text ONLY above your head!


(ie.
Wruoa : !Hi
result=
_______
| Hi |
|__ __|
\/
( . . )
\ - /
~~~

2) PATCHED!! (And banned many people, including myself!)... See Location of ALL Monsters on the map.
(I Can't remember which one it was... I'm pretty sure it was the first one... Look at the bottom for other possibilities.)
Step 1 - Create a room titled: God
Step 2 - Type the password as: Fishh
(YES 2 H's)

A Combination of Room Name and Pass = God, Godd, Fish, Fishh

That's it!!