Psychic Seal of Permanence
Even the most awesomely powerful spells need the Psychic Seal of Permanence or they can be reversed or countered by some form of magic. Once this 10 round incantation is spoken in conjunction with another spell, that spell can never be removed. So powerful and important an enchantment is this, that it is only written down and never memorized, except by Sorcerers Supreme. Once the passage is read from a work and the Psychic Seal is finished, the spell disappears from that work and cannot be used again.