Orb of Excision

Removes the modifier you pick on the bench (used directly: a random one that is not bound).

What it does

Removes the modifier you pick on the bench (used directly: a random one that is not bound).

Only an item with a rarity and a modifier that is not bound.

Uniques, ruined items and stacks are refused; the crafting bench shows what an orb would do before you use it.

Used directly: Use with on the orb, then click the item.

Removes one modifier of a Rift Key.

Source	How
Monster drops	Per kill by monster tier: Normal 0.03%, Magic 0.25%, Rare 1%, Legendary 4.5%, Boss 8%; 1 at a time. Legendary monsters and bosses also drop one guaranteed currency item, this one 2.4% of the time.
Salvage	Combine 60 rune shards into one at the crafting bench.
Salvage bonus	Salvaging gear with a rarity sometimes gives a whole orb (0.5%-5% per item by rarity); 2.2% of those are this one.
Store	1 for 25 Chaos Coins, 3 a week per account.