Wizard101 Highest Storm Damage Boost:

Hat: Time Warden Downpour Kavuk												-		+25%
Robe: Lower Zigazag Vestment												-		+28%
Boots: Time Warden Downpour Galesh or Diviner's Deep Rolling Waders			-		+28%
Wand: Ione's Legendary Sword												-		+18% (+Shiny Damage Amethyst = +26%)
Mount: Battle Narwhal														-		+2%
Pet: *Spark Beast															-		*+25% (+Storm Dealer Amethyst = +1-13%)
Athame: Aphrodite's Storm of Thorns											-		+18%
Amulet: Memento of Ammit's Revolt											-		+2%
Ring: NightOrb's Ring of Havoc												-		+13% (+Shiny Damage Amethyst = +26%)
Deck: Lightning Rider's Deck												-		+2% (+Shiny Damage Amethyst = +26%)


Grand Total: 227% (Not including potions)

*Not verified by Wizard101Central

Credit: Wizard101Central