Archmage enhancements (history)

Overview
''The most advanced practitioners of arcane magic are frequently Archmages. They gain strange powers and the ability to alter spells in remarkable ways, but must sacrifice some of their spell capability to master these arcane secrets.''

Wizard Archmage I
Prereqs: Level 6 Wizard, Wizard Intelligence I, Improved Concentration II, Wizard Energy of the Scholar II, Mental Toughness, and any Spell Focus

Conjuration I - Grease
Prereqs: Level 6 Wizard, Wizard Archmage I, Spell Focus: Conjuration Benefit: You have committed the spell Grease permanently to memory as a spell-like ability. Using this ability costs you 1 spell point. Purchasing this enhancement will reduce your maximum spell point total by 25.

Wizard Archmage II
Prereqs: Level 12 Wizard, ???