I missed Keeper of the Art faction for Druid epic.
I bought 1000 batwings from Katha Firespinner in Commonlands - went to mage guild in Southern Felwithe. Found Niola Impholder. She has a quest (Bat Wings) the requires 4 batwings in exchange for 2 Faction hits to Keeper of the Art. Turned in 100 at a time.
Bat Wings gives these factions:
Your faction standing with Keepers of the Art has been adjusted by 2.
Your faction standing with King Tearis Thex has been adjusted by 1.
Your faction standing with Faydarks Champions has been adjusted by 1.
Your faction standing with The Dead has been adjusted by -1.