First Spell

[beamspam_mage]

[Defeated.  Overwhelmed and taken by surprise by a man capable of magic nearly on the same level as her own... and also forced to enter a contract with that girl in order to survive.  Needless to say, if anyone knew the truth about what happened to her old Master, Caster had no doubt that what little goodwill she had would vanish in an instant.

[And thus she's staying away from the group for the most part.  Or at least as much as she can while being close to Allura.

[EDIT: Have a permission post up in case you want Medea to figure out (eventually, mind you), certain magically-related things in your canons here.]