But self geis isn't the same thing as normal geass, you are surrendering your own free will and binding the terms of the contract to your magic crest. This is knowledge that any magus with a crest should have, that's why I wanted about magical crests waaay before.
Self-Geis Scroll – one of the most merciless contract magecrafts that would only be used in the treacherous society of magi when a contract that absolutely cannot be disobeyed was to be made.
It is an enforced curse that forcibly uses the functions of one’s own Magic Crests upon oneself. Theoretically, it has a power that cannot be erased by any method. Even if the caster lost his life, the Magic Crests would bind the soul of the dead man and would not pass down the generations. It is a very dangerous magecraft. For magi, a parley that involves offering such a declaration would in fact mean a maximal concession.
Although it wasn’t something Kayneth often saw, it was indeed proper in the way it was written, with no loopholes.
It's a curse that binds through the Crest. By that same logic, everyone with Circuits should know Spiritual Surgery, but that isn't the case either.
If it is a curse, and you do not know the curse, you cannot use the curse. It's really that simple.
The whole point of doing a higher generation magus is to have some flexibly because of a crest loaded with centuries worth of magecraft lore. If this isn't possible, I don't see a point of doing a character like Seyrun at all. I remember very well when I asked @Unoedipal about this.
I don't see what your argument is. I don't know how much clearer I could have been in the character sheet when I stated that everything from individual spells to High-Speed Aria to Magic Crest characteristics should go in there, and that if it's not in there then you don't know how to do it.
The onus is on you to put a spell in there if you want a spell to be in there. That's really all there is to it. I explained rather clearly that if a spell isn't there, it isn't known. Curses are spells. The curse you want to use isn't there. You could have put it there but did not. Ergo, you can't use the curse you want to use.
I'm sorry but yeah, if you misunderstood the description for the magecraft section then I really don't know what to tell you.