While I like the powers I don't think it shouldn't be able to be abrogated. That makes no sense and immediately makes me not want to allow it in campaign.
Other powers that grant multiple abilities such as Legendary or Lord of Individuality or Lord of Maggots can be abrogated just fine.
I get you don't want your new power to just be negatable, but that perk doesn't make any sense, and it should be as vulnerable as any other ability, especially as a divine power, and needing Cosmic Nullification, a literal Omnific Power to get rid of the second corruption is ridiculous.
Get rid of that and I think its a great, customizable power, otherwise it's too strong and very unbalanced.