This weapon will instantly kill a Dragon if the player slides a natural 20 and the 10✸ on its damage wheel is closest to the damage dot on the combat board.
When attacking non-Dragons, this is an “ordinary” +2 weapon.
The dragonslaying effect of this weapon is triggered by sliding a natural 20 and scoring a 10 on the damage wheel. It does not require a critical hit. Thus this effect may still function when fighting Dragons immune to critical hits or sneak attacks.