Multiattack

The hag attacks with its claws and uses Ice Bolt.

Claws

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 15 (2d10 + 4) slashing damage.

Ice Bolt

Ranged Spell Attack: +7 to hit, range 60 ft., one creature. Hit: 15 (2d10 + 4) cold damage and the target makes a DC 15 Constitution saving throw. A creature under the hags curse automatically fails this saving throw. On a failure the creature is restrained as it begins to turn to ice. At the end of the creatures next turn the creature repeats the saving throw. On a success the effect ends. On a failure the creature is petrified into ice. This petrification can be removed with greater restoration or similar magic.

Shapeshift

The hag magically polymorphs into a Small or Medium humanoid or back into its true form. Its statistics are the same in each form. Equipment it is carrying isnt transformed. It retains a streak of white hair in any form. It returns to its true form if it dies.

Invisibility (2nd-Level; V, S, Concentration)

The hag is invisible for 1 hour. The spell ends if the hag attacks or casts a spell.