Dampen Strength - , -10% to negative charm spell. Turning -25% Weakness to -35%, and -40% Virulent Plague to halving the damage (Font of Weakness eat your heart out).
Expand - , +10% to Global spell. Turning +35% Power Play to +45%, but turning +20 pierce, +12 critical Namaste to +25, +17; not +30, +22.
Duplication - , Summon 2 copies of Minion spell for 3 pips extra. Making a 5-pip, 1-Talos into an 8-pip, 2-Talos. This also lets you summon more than 1 minion.
OR:
Puppetmastery - , Control the hand and spells cast by your minion. Which would you rather? Or both?
Then:
Astramancer - , +1 round to target aura or polymorph. 5-round auras, 7-round polymorphs.
Lunamancer - , +5% to target polymorph's stats. Increase every stat by 5%. Some may call it OP, some may call it UP, I just call it interesting.
Stellamancer - , +5% to all positive aura effects, -5% to negative. Making Vengeance +25% & Reliquary +30% , +10% PP, +5% inc. . For Empowerment, I think it should make it so the pip has a 5% chance of being a PP. And on Perdurable (see below), it should change the 500 to 525 (5%).
That's about it for , now onto :
Tenebrosity (Also my new favourite word) - , +10% pip chance for 4 rounds.
Empressement - , +25% incoming for 4 rounds.
Perdurable - , +500 base health for 4 rounds. Say you use it at 2000 health with 3000 base, this will take you to 2500 with 3500 base. Will take 500 health away at the end of the 4 rounds, though, even if it kills you.
:
:
, +10% PP, +5% inc. 
. For Empowerment, I think it should make it so the pip has a 5% chance of being a PP. And on Perdurable (see below), it should change the 500 to 525 (5%).
pip chance for 4 rounds.
for 4 rounds.