Samurai Butterflies

Coming, as all other things do, from a strange discussion on the OSR discord.

The Samurai Butterflies are strange, ethereal creatures heralding from the Shining Isle, a wandering island that drifts across the oceans. Rarely, they wander into human lands, where they will gladly work as mercenaries, soldiers, and other combative professions, stating it is necessary for their kind to survive.

Some of them seem to remember events from long ago, and even events they say they died during. Whenever one dies, they shatter into a swarm of tiny blue butterflies, which fly in the direction of the Shining Isle.

HD: 0 (1 HP)
AC: 19
Movement: Flight 50', Walk 25'
Initiative: Always goes first.

Counter: When an attacker misses the Samurai Butterfly with a melee attack, the Butterfly immediately counters (as 1x Sword attack) and disarms the attacker.
Deflect Projectile: When an attacker misses the Samurai Butterfly with a ranged attack, the Butterfly catches and returns the projectile, using the attack's stats along with an extra +3 to hit.
Sever Magic: A single use of the Sword attack can be exchanged for a single charge of Sever Magic. If the Butterfly would be affected by a magical effect, it can choose to expend a charge and remove the effect.

Melee - Sword: 3 attacks with a +5 bonus to-hit, each dealing 1d8.
Ranged - Butterfly: The Samurai throws 3 small, blue butterflies, making 3 ranged attacks at a +3 bonus to-hit and dealing 1d6 damage.