Is this oracle / demoniac alt too over powered ?

[Lastoutkast]

I want to make a Cthulhu possessed oracle with boons and dark tapestry mystery. i was thinking something like this. replacing the Mystery spells with the demoniac class features and replacing Final Revelation with Demonic Form.
then use Haagenti boons but replace or mod the 3ed boon with some ablity to make the character more chthulhu like for a time.Hope that made sense and thanks for reading.

Level
1st- Mystery, oracle’s curse,orisons,Revelation
2nd- obedience
3rd- Revelation
4th- Damned
5th
6th- demonic mark
7th- Revelation
8th- Energumen +2
9th
10th- Demonic boon 1
11th- Revelation
12th Energumen +4 (resistances)
13th
14th- Demonic boon 2
15th- Revelation
16th- Energumen +6 (immunities)
17th
18th- Demonic boon 3
19th- Revelation
20th- Demonic Form

 

[Lastoutkast]

yes ? no ? maybe ?

 

[Lwaxy]

I'd say it depends on the type of campaign and the other PCs. I'd have no issue with it at my table.