Talk:Sealing Crystal/@comment-29707962-20160821040542/@comment-28768171-20160822135217

The summoning spell for the angel is the ritual actually. The crystal itself is seperate and has to be found naturally or made through a different magic. They set up the crystal then start the ritual for starting up the spell and sealing it up in the crystal. It seems the benefit of the crystals is anyone can use them, but they are harder to mass produce. The spells in scrolls can only be used if you possess the required class or a skill that lets you ignore that class requirement. Spells like Message seem to be able to be used by anyone so that's not a good example. Scrolls can be more easily mass produced, but you need high quality, rare materials if you want to make scrolls able to hold high tier spells.