Ira's Patron

Orthax has leeched onto Ira due to her deteriorating mental state due to the assassination of the King recently. Orthax has leeched onto her due to her wanting to claim vengeance on T and the 8. Once Ira has finally meditated and found the link between her and Orthax he will announce who he is to her and we will go from there.
What does Orthax want? All he wants is to have more people commit Vengeance so once Ira has taken out T or any member of the 8 then he will pressure her to continue her anger to the rest of the 8 members. If Ira want to have Orthax removed then how will it work? Remove Curse? Greater Restoration?