If you control 2 or more Draconic chain links, this gets go again and "When this hits a hero, you may have target dagger you control deal 1 damage to them. If damage is dealt this way, the dagger has hit. Destroy the dagger."
If you control 2 or more Draconic chain links, this gets go again and "When this hits a hero, you may have target dagger you control deal 1 damage to them. If damage is dealt this way, the dagger has hit. Destroy the dagger."