Ashe's Interception

You attempt to impose yourself between a spell caster and an ally. You teleport to an unoccupied space adjacent to an ally you can see that is the target of a spell that only targets one creature, or is in the area of a spell that targets all creatures in an area. If the spell being cast targets only one creature, you become the target for that spell. If the spell targets multiple targets in an area, you have disadvantage on any save that spell may require, and all other targets of that spell have advantage on that save.