Something messed up in it. Effect ID 187 is not implemented. Click the link to spdat, scroll down to see for yourself.
http://code.google.com/p/projecteqemu/source/browse/trunk/EQEmuServer/zone/spdat.h?r=1857The blank spot in the effects row mean somethings not implemented, so it wasn't added to the editor. Used another editor to show the unknown.
I think its just a typo and maybe was supposed to be 186 min. dmg mod.