The Recipe for Marauder (Power|Precision|Vitality|Ferocity) needs Ebony Orbs (Power|Toughness|Ferocity|Healing) while the Recipe for Crusader (Power|Toughness|Ferocity|Healing) needs Agate Orbs (Power|Precision|Vitality|Ferocity).
Looks like a mix-up. This is true for both Insignia and Inscription Recipes.
