Paper Cut

Melee Weapon Attack: +5 to hit, reach 0 ft., one creature in the swarm's space. Hit: 14 (4d6) slashing damage, or 7 (2d6) slashing damage if the swarm has half of its hp or fewer.

Whirlwind (Recharge 5-6)

The air is momentarily filled with paper golems. Each creature within 5 feet of the swarm must make a DC 13 Dexterity saving throw, taking 7 (2d6) slashing damage on a failed save, or half as much damage on a successful one.