I made an Alternate Capstone for Queen Elvanna when I was going to remake her as level 30 (yes 30).

[Reksew_Trebla]

Guardian Familiar (Su):

A character with a Guardian Spirit who can acquire an Improved Familiar can make their Guardian Spirit their Familiar, improving it first as a Familiar, then as a Guardian Spirit. This capstone is available to any character with both an Improved Familiar and a Guardian Spirit.

For context, I was going to buff the Adventure Path Reign of Winter so the PCs would end at level 20, so I could make Queen Elvanna a Witch (Winter Witch) 20/Winter Witch 10, using the limited rules for Epic Level, which means she would now get an Alternate Capstone.

Unfortunately, I never got to do this, so I decided to share the Alternate Capstone I made here, so hopefully somebody can make use of it.

Further information on how I was going to use this. I was going to give her a Small Ice Elemental as both a Guardian Spirit and Improved Familiar. She would have it called, not summoned, since she needs her Familiar already with her to prepare spells every day.

I just thought it would be a neat Alternate Capstone for her, to have this really op Ice Elemental. It would look pretty weak too, since it is a Small Ice Elemental, so that could catch the players off guard if they tried to target her Familiar first for whatever reason.