How to buy single rune in gold?

I haven't seen a rune that can be boughtable by gold?

 

u cant anymore u have to buy packs and trade the runes you get to other players for it!
the packs are worth i tried em and got some nice runes!

 

You can't.

You buy packs with gold

IF you get runes you don't want, you can dissolve them into nora shards

You can then use these nora shards to craft runes you want in the rune forger.

 

only exotic can be craftable? and why I cant see Leg on runechecklist?

 

oh gawd..

 

Up to Exotic can be crafted, Legendaries can be found in the packs.

The Legenary/Limited issue is known, they will try to fix it shortly.