Plans: Thorium Shield Spike

This item is a vanishingly rare world drop.

The only creatures it drops from with any measurable regularity are:
 * Onyxia in Onyxia's Lair
 * Lord Kazzak in Blasted Lands
 * Emeriss in Ashenvale
 * Lethon in Ashenvale
 * Highlord Kruul in Durotar
 * Azuregos in Azshara
 * Nefarian in Blackwing Lair
 * Taerar in Ashenvale
 * Ysondre in Ashenvale

Note that it drops from these creatures 3% or less of the time.