Distort Luck

You distort the Luck of up to 3 creatures of your choice you can see within range. Whenever the target makes an attack roll, increase and decrease the critical range by 1. This makes the hit counts as a critical success on a 19 or 20, or critically fail on a 1 or 2.

At Higher Levels. When you cast this spell using spell slots of 5th or 6th level, increase and decrease the Critical range by 2, using 7th or 8th level, increase and decrease the Critical range by 3, and at 9th level the critical range increases and decreases by 4.