Fist of all: Nice to see so many different entrings.
I'll keep it shorter this time.
Balance - Will(ow|iam)Yeah, that's fine. Remembers me a bit of the Plateau Shepherds. Not a lot to say about this. But it spices the game up a but, so it's one I really like.
Kin Cooperation - LibraryAdventurerAn interesting way to get coffers or villagers. Depending from the kingdom this could be an interesating one, but it also could become a dead landscape in some cases, where you just don't have a chance to play those cards one after one. I'm unsure if that's worth $6 or even $5 for me.
Siblings - BryGuyA gain-on-shuffle, when it's not in the game? Not a bad idea. But has room for potential. Would be nice if there was some sort of interaction between brother and sister.
Motherly - StrangerSon712A mother, which comes with her whole family. That's gamewise and thematically a really cool one, espacially when you have a cheaper Motherly card, but it's connected to two strong b&s. The other way around it creates an interesting decisionpoint where you have to choose if you want to get a strong card, which comes with 2 weaker ones. Yeah, that's good. Maybe a little bit dangerous in point of ending the game too fast.
Identical Twins - bigotatoAnd yeah, that's a really cool one. LibraryAdventurer hit the point quite well. The switching mechanism looks like a really cool thing which adds an interesting dynamic to the game.
Temple of the Siblings - SnorkaNot much making me very curious about this. Or at least less than the 'Balance', which also combines b&s to an additional VPsource, just with another operation. I preffered 'Balance' over this.
Kinship - seguraThat's good. That's fine. Not very exciting, but a solid nice to have. Again, with $6 and depending from the kingdom this could be something very less used.
My Top 33rd - Siblings
2nd - Motherly
1st - Indentical Twins
Winner: bigpotato