[2022] Questions about Manabond and Blood Magic changes

Starting with Manabond:

Now has 160% Effectiveness of Added Damage at all gem levels (previously 100%).

So, Manabond specifies that it "Deals base Lightning Damage equal to (15-34)% of missing Unreserved Mana". Am I correct in assuming that this damage is not effected by the increase in damage effectiveness? Since it is "base" and not "added".

For Blood Magic:

The Blood Magic Keystone no longer has "Spend Life instead of Mana for effects of Skills" and it now has "10% more maximum Life".

So old Blood magic has these modifiers:

• Removes all mana
• Skills Cost Life instead of Mana
• Skills Reserve Life instead of Mana
• Spend Life instead of Mana for effects of Skills

Now it is:

• Removes all mana
• Skills Cost Life instead of Mana
• Skills Reserve Life instead of Mana
• 10% more maximum Life

Can someone tell me exactly what "Spend Life instead of Mana for effects of Skills" applied to? It seems like a moot mod when the skill is removing all mana, and changing costs and reservations from mana to life already.

I feel like it might have let something that worked off spending mana use spent life instead, like sigil of power? If so, and that mod is gone, that removes that functionality.