Cone of Enlightenment.

The prayer beads you hold begins to float from your hand and in front of your head, and from it, a huge cone of light extends from the center of your forehead, through the prayer beads. All allies within the 30ft Cone are now enlightened, their Intelligence, Wisdom, and Charisma scores increase by 1, they have advantage on all ability checks that require Intelligence, Wisdom, or Charisma, and when making an Intelligence, Wisdom, or Charisma saving throw, they add an additional 1d4 to the total score. When this spell is used again on the same people, the buffs don't stack up, rather, the duration resets.

At Higher Levels. When you cast this spell at 7th level or higher, the increase of the score increases by 1 for each spell slot above 6th

Special Casting. When casting this spell, you can cast it as an action, giving the same effects to your targets for whichever spell slot you'd used, or you can cast as a ritual for 12 hours in the House of Knowledge Plane, increasing the duration to 2 weeks, and the effects of the spell being as if you had cast it at 9th level.