Enlightenment

You attempt to infuse a creature with the knowledge of the universe. If the creature is unwilling, make a melee spell attack against it. On a miss, the spell has no effect. Otherwise, the target’s intelligence score is increased by 4 and it gains proficiency in all skills. The target also takes 4d8 psychic damage and is stunned for 1 round as they are overwhelmed with things they wish they didn't know.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the target's intelligence increases by an additional point and the damage increases by 1d8 for each slot level above 4th.