Devil's Sight. Magical darkness doesn't impede the gida's darkvision. Magic Resistance. The gida has advantage on saving throws against spells and other magical effects.
Multiattack. The gida makes 3 shadow dagger attacks and One Reaching Shadow attack. Shadow Dagger. Melee Weapon Attack: +7 to hit, reach 5 ft., 1 target. Hit: 7 (1d6 + 4) [necrotic] damage. Shadow Dagger. Ranged Weapon Attack: +7 to hit, reach 20/60 ft., 1 target. Hit: 7 (1d6 + 4) [necrotic] damage. Reaching Shadow (recharge 5 and 6). When the gida hits with a shadow dagger it can attempt to steal one of the items its target is carrying. This item can not weigh more than 5 pounds. If the creature is wearing or wielding the item it must make a strength saving throw DC 14. A perception check DC 15 will reveal an item is being taken if it was not taken from their grasp.
Shadow Seal. When the gida is hit with a melee attack by a creature within 5 ft of it it attempts to step on their shadow. The creature must succeed on a dexterity saving throw DC 14. On a failure, they are paralyzed until the end of their next turn.