Paragon of Intelligence is a passive feature unique to the Wise Sentinel which gives them boosts to their Intelligence Saving Throws and Spell Attack Rolls.
Description
This Dark Justiciar was anointed by Shar as a sentinel of Intelligence, representing one of her most valued attributes in a follower.
They have 
Advantage on all 
Intelligence saving throws and Spell 
Attack rolls.
How to learn
Used by creatures: