Just been looking at these and think some other spells would make more sense generally for the perks as below compared to the current spells:
Bone warden
9 Fear
10 Beltyn burning blood
Calligrapher
9 Summon 4
10 Summon 5
Dream Eater
9 Confusion
Maiden of Woe
9 Summon 4
Mesmerising
10 Dominate Person
Azure pyre
10 Firebrand
Spellsword
10 Greater heroism
This is a great idea, and I would add these, too:
Infuser:
10 Illykur's Mantle
Scion:
10 Iron Skin
Stalker:
9 Shadow Conjuration