Does greater blood magic do anything?

[samson]

Its all in the title

[U92]

If I'm not wrong it turns all of your spells into a more potent version of themselves.

[Nobody]

You get more efficient variants of the spells,they use less mind to cast but only apply to grogoroth Spells (I think that's how the name of the god was written)

[CtenosaurOaxacana]

Greater Blood Magic automatically improves each of
Gro-goroth's 3 'blood' spells, granting you their 'greater' improved forms,
IF you have them. They must still be learned separately, whether before or after.
The weaker original spells will stay higher in your skill list, but just ignore them.

Greater Blood Golem:
Reduces the Body (aka HP) summoning cost by 75%,
so you lose 4-6 Body instead of 16-24 Body

Greater Hurting:
Reduces the Mind casting cost by 75%,
so it requires 10 Mind instead of 40 Mind

Greater Necromancy:
100% success rate in raising ghouls & skeletons,
no more 50% / 75% coin-flip risk wasting the 30 Mind cost & forcing a fight


Greater Blood Magic can be unlocked in 4 ways:

• getting (or having) the Enlightened soul, then using the Hexen table
  
• finding & reading a 'Scroll of the Wizards'
  
• 'O LORD | TEACH | GREATER MAGIC' via an empty scroll & quill
  
• If you're playing Dark Priest Enki, can be learned from the Book of Lost Memories

While the unique 'Chains of Torment' spell should perhaps count as a 'blood' spell,
I can confirm that Greater Blood Magic has no effect on it.
But to be fair, it's already kinda OP as is.