Weaving Spider

Immutable Form. The weaving spider is immune to any spell or effect that would alter its form.

Magic Resistance. The weaving spider has advantage on saving throws against spells and other magical effects.

Multiattack. The weaving spider makes two trimming blade attacks or two needle shuttle attacks.

Trimming Blade. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage and possible unmaking.

Poisoned Needle Shuttle. Ranged Weapon Attack: +5 to hit, range 30 ft., one target. Hit: 7 (1d8 + 3) piercing damage, and the target must succeed on a DC 13 Constitution saving throw or become paralyzed. The target repeats the saving throw at the end of each of its turns, ending the effect on itself with a success.

Unmaking. The weaving spider's speed and its slim, sharp blade can slice cloth, leather, and paper into scraps very quickly. Whenever a weaving spider's trimming blade attack roll exceeds the target's armor class by 5 or more, the target must succeed on a DC 13 Dexterity saving throw or one of their possessions becomes unusable or damaged until repaired (DM's choice)