You reach out and grasp the imperceptible threads of fate, subtly manipulating them. Whenever a creature within 60 feet of you makes an attack roll, saving throw, or ability check, you can use your reaction to tweak their fate, altering the value of the roll. You can choose to manipulate fate after the die is rolled, but before the outcome is determined.
You can alter the roll of the die to an adjacent number to the number rolled (outcomes listed on the table below).                                          

d20	Tweaked Fates
1	7, 13, or 19
2	12, 18, or 20
3	17, 16, or 19
4	11, 14, or 18
5	13, 15, or 18
6	9, 14, or 16
7	1, 15, or 17
8	10, 16, or 20
9	6, 11, or 19
10	8, 12, or 17
11	4, 9, or 13
12	2, 10, or 15
13	1, 5, or 11
14	4, 6, or 20
15	5, 7, 12
16	3, 6, or 8
17	3, 7, or 10
18	2, 4, or 5
19	1, 3, or 9
20	2, 8, or 14

When you alter a roll, you can choose to cast aside subtlty and yank the thread of fate, and select any value of the d20 as the outcome of the result, but the backlash causes you to take a number d6 equal to the difference in the value selected from the value rolled in necrotic damage. The spell immediately ends after the result is changed in this more drastic way.