Rivethun Involutionist

You gain the Basic Spellcasting Benefits. Each time you gain a spell slot of a new rank from the Rivethun involutionist archetype, add a common divine spell of the appropriate rank, another appropriate divine spell you learned or discovered, or any other divine spell to which you have access, to your repertoire.

You gain the service of a young animal companion, which has been blessed by the spirits of this world. If you already have an animal companion, your current animal companion becomes blessed by the spirits instead. This animal companion follows all the usual rules for animal companions. You can Sustain to activate your companion's latent blessing, as long as your animal companion is within 60 feet of you. When you activate this blessing, all damage dealt by your animal companion's Strikes deal spirit damage, rather than the usual damage those Strikes would deal. This blessing remains active until the beginning of your next turn.

You gain the Expert Spellcasting Benefits.

Your animal companion gains a unique specialization, spirit-blessed. Thanks to the blessing bestowed upon it by the spirits of this world. If your animal companion already has the spirit-blessed specialization, it gains one additional specialization of your choice.

Spirit-blessed: Your companion is capable of harming wayward spirits, ghosts, and other incorporeal creatures as easy as if they were made of flesh and bone. Your companion's Strikes all gain the effects of the ghost touch property rune.

Special You can select this feat up to three times. Each time, add a different specialization to your companion. It's first specialization must be spirit-blessed.

You gain the Master Spellcasting Benefits.