Interdisciplinary Incantation
Trigger A creature within 30 feet casts an arcane spell.
You gather the embers of another caster's spell, using your understanding of unified magic to pick apart their formulas and incantations well enough to imitate the spell yourself, if only for a short time. Until the end of your next turn, you can Cast the triggering Spell by expending a wizard spell slot of the same rank. That caster's spells can't trigger your interdisciplinary incantation again for 24 hours.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Focus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Points—you can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.
This indicates abilities from the wizard class.