When you cast this spell, two shimmering portals appear: one green portal in an unoccupied space within 5 feet of you and one purple portal in an unoccupied space within 5 feet of the arrow’s target. Any creature can step through the green portal and appear in the purple portal’s space. The portals are one-way. A creature that steps into the purple portal’s space feels a tingling chill but is otherwise unaffected by this spell. The portals last for the duration or until a creature steps through the green portal.