These are those who cherish the bonds of their friendship, helping them in times of need, and caring for those they very held dear to their heart, and no one, not even the mighty Living Tribunal can cut those bonds.
Memory Manipulation: As a Time Lord, the Teacher is able to manipulate the memories of most sentient, and non-sentient species, able to not only fabricate new memory, but also erased memory of the individual.
Loneliness: Due to the Teacher being the Time Lord from the Second Cosmos, the Teacher eventually become the embodiment of loneliness. Even if the Teacher is with individuals, such as friends, he feels alone always, and will always feel alone regardless of those around him. Due to him existing for as long as the Multiverse itself, making his true age truly unknown. They may take away some loneliness, but the Teacher will still feel alone.
Memory Manipulation: Despite being able to control memories as well, another is able to alter the Teacher memories as well.
Magic Negation: Will nullify/negate the Teacher magic powers, spells and incantations.