Multiattack

The medusa makes any combination of two attacks with its snake hair and longbow.

Snake Hair

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage plus 7 (2d6) poison damage plus an additional 3 (1d6) piercing damage if the target is a creature that is surprised or that can't see the medusa.

Longbow

Ranged Weapon Attack: +7 to hit, range 150/600 ft., one target. Hit: 8 (1d8 + 4) piercing damage plus 7 (2d6) poison damage.