So I'm pondering suggesting this houserule for my group's homebrew setting where you can take Improved Eldritch Heritage twice. You can take it at 5th level or above in order to gain your chosen bloodline's 3rd-level power, and starting at 11th level you can take it again to gain the 9th-level power. To me this just seems like it'd open up a lot of interesting build options at earlier levels, but I'm not an expert on sorcerers. Would this change just wildly unbalance things in some manner I've been unable to foresee?
Cheers,
- Gears
My experience with that exact houserule, no it wouldn't.