143473-cant-add-rune-set-rune

== Content ==
			Can anybody explain to me why I can't add this rune to this slot? (Yes, the other air rune is also strikethrough, but 2 power). But my earth runes are 1 power and 2 power crit severity rating.	
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			This is a class rune? Those are unique for your whole armor set, right? Do you have that one slotted somewhere else already?	
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This is a class rune? Those are unique for your whole armor set, right? Do you have that one slotted somewhere else already?
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