Holy Thunder is the rune word 'EthRalOrtTal' for scepters in Diablo II: Lord of Destruction.
Holy Thunder is a very easily made rune word, considering that three are obtained from the Rescue on Mount Arreat quest, and the last, Eth, is a common drop. A decent weapon for lower level Paladins.
+60% Enhanced Damage
-25% Target Defense
5-30 Fire Damage
21-110 Lightning Damage
+75 Poison Damage for 5 seconds
+10 to Maximum Damage
+60% Lightning Resist
+5 to Maximum Lightning Resist
+3 to Holy Shock (Paladin only)
Level 7 Chain Lightning (60 charges)