Arcane Interface

You reach into the energies of one spell that you can see. You must make an intelligence check against the spell save DC of the spell's caster unless it was you who casted the spell or the caster of the spell allows you to succeed (no action required). If you succeed, you may to learn more information about the spell. You may learn which spell it is, the type of damage dealt by the spell, the spell's duration, what level it was cast at, and any piece other of information that the DM determines to be appropriate.