[Valerius]

I haven't yet reviewed all the changes to blood summon costs but based on a quick glance I like what you've done. And making SDRs and jade knives unique are interesting ideas. I'll be curious what feedback you get on these changes since I think people are used to blood summons being underpriced... But looked at from a balance perspective I think these changes are reasonable.

Talking about SCs for a moment, what about the idea of making elemental royalty non-unique? Your mod doesn't assume use of the EDM so this would provide non-unique SC choices for nations without the Chalice/GoH (since you really need one of those to make tarts cost effective) or national SCs. And there wouldn't be a problem for games that use EDM - you'd just have more elemental SC summons to choose from.