Marksman's Cloak (Patreon)

Wondrous item, rare (requires attunement by a ranger)

While wearing this cloak, you can concentrate on a second ranger spell you cast while also concentrating on hunter's mark. If you are forced to make a Constitution saving throw to maintain your concentration, you make only one save for both spells: if you fail the save, your concentration ends on both spells. If you're only concentrating on hunter's mark, your concentration on it can't be broken as a result of taking damage.

"It is the nature of prey to run from their pursuers—it is the nature of the hunter to keep their quarry in focus."

—Virgo, hunter of the eastern woods, to his apprentice.