What does Corruption need?

4× Rugged Leather, 40× Thorium Bar, 2× Arcanite Bar, 2× Blue Sapphire, 2× Dense Grinding Stone, 16× Demonic Rune, 8× Essence of Undeath.

Where do you learn Corruption?

From the recipe item Plans: Corruption.

WoW: Forever · Recipe · Classic Beta PvE 2 · Alliance

Its reagents cost at least 15g 40s today.

Prices from

1 scanner · Beta market · Classic Beta PvE 2 · Alliance

Beta market: a level cap and far fewer players, so these prices say little about launch.

Other markets

CorruptionNo scan yet

ReagentNeedEachTotal

Reagents in total, at least15

Questions

What does Corruption need?: 4× Rugged Leather, 40× Thorium Bar, 2× Arcanite Bar, 2× Blue Sapphire, 2× Dense Grinding Stone, 16× Demonic Rune, 8× Essence of Undeath.
Where do you learn Corruption?: From the recipe item Plans: Corruption.