A dirgesinger with Greater Spelll focus gains the feat Epic Spell Focus.
However my dirgersinger doesn't have the create greater undead spell which goes with it.
Is this a bug?
Dirgesinger Greater Spell Focus
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Re: Dirgesinger Greater Spell Focus
And after I ask I found the solutions it is located not under epic spells it is located under dirge singer abilities.\
tl;dr : User error.