If you want to get anything from the General Magic Ace page, you must pass the Barrier Of Entry for the General Magic Archetype. this means you need:
Skill Check : Arcana, A Tier III Spellmaker, & Signature Spells
Master Of Magic
Requires Barrier Of Entry : General Magic
As either an action or a bonus action, you can manipulate raw magic power that has your elements and restrictions, however there is no mana cost or requirement for a spellcasting focus.
You cannot use this ability to cast a spell that you have made, you are not able to use this to conjure complicated spells. You draw magic from the rawest source without depleting any of your actual reserves.
Super Spell
4 Point | 1 Max
Requires Barrier Of Entry : General Magic
Greater Spell has become a free action instead of an extra action and the maximum points you can spend on it is 10.
Magic Vax
4 Points | 1 Max
Requires Barrier Of Entry : General Magic
The magical resistances you chose now become magical immunities.
Iconic Spells
4 Points | 1 Max
Requires Barrier Of Entry : General Magic
You get two additional signature spells. Choose one at tier 4 and one at tier 5.