A siphon is a magic-user with the ability to draw knowledge, abilities, memories, or power from another being and use it as if it is their own. An example would be Rai, who likes working near scientists so he can borrow their knowledge and experience as he works on his own spells. Elsa, also a siphon, prefers to work off what Rai gets, rather than pulling it on her own, as the accompanying emotions can overwhelm her.