why does the runeword "doom" not work in swords or spears ?

Doom
->5 Socket Axes/Polearms/Hammers<- so, because bliz made it 2 only work in axes/polarms/hammers
Hel + Ohm + Um + Lo + Cham
5% Chance To Cast Level 18 Volcano On Striking
Level 12 Holy Freeze Aura When Equipped
+2 To All Skills
+45% Increased Attack Speed
+330-370% Enhanced Damage (varies)
-(40-60)% To Enemy Cold Resistance (varies)
20% Deadly Strike
25% Chance of Open Wounds
Prevent Monster Heal
Freezes Target +3
Requirements -20%

euhm .. thats senseless that doom only works in polaerms and so on...
hmm ok thx neop

umm there are a lot of runewords that only work in certain types of weaps, in fact most of them do... (im glad botd works in everything though )

**lol**