Gift of the Saint (聖者の贈り物, Seija no Okurimono?, alt. "Saint's Gift") is a Skill acquired by completely turning into Santa Claus and enriching hearts by giving presents.[1][2][3][4]
The presents Artoria Alter gives out are slightly different than what the recipient wanted, so the Skill doesn't work as well as one would expect. She has an almost genius-level talent at picking presents that bring out past trauma in others.[1][2]
Jeanne Alter Santa Lily's rank in this Skill is quite high for a rookie Santa, likely due to her earnest approach and hard work making up for her inexperience.[3][4]