|Name||Angel Killing Sword|
|Powers||Can kill Angels and Archangels|
|Location/Owners||Most angels carry this weapon|
|Episodes|| First Appearance: 4.16 On The Head Of A Pin|
Last Appearance: 5.19 Hammer Of The Gods
A weapon capable of killing angels. It could be described as a long blade, or a short sword. Apparently even Lucifer can be killed with this blade, although it must be an Archangel Killing Blade.
Death's Scythe is another weapon that can kill angels; it also can kill reapers and demons as well.
Castiel gives his blade to the Winchesters to use on Anna5.13 The Song Remains The Same, and although Uriel stated that the only thing capable of killing an angel is another angel it seems that the blades are still effective in the hands of a human. Dean Winchester killed Zachariah with an Angel Killing Blade.
It could be possible that the higher the rank of an angel, the more powerful the sword he carries. Kali does refer to Gabriel's sword as "an Archangel's Blade". Gabriel's sword was capable of killing Archangels, including himself. When an Angel is killed by this weapon, they explode with an intense white light and their wings are burned like ash onto the ground where their bodies lie.
At this point it has not been revealed how an angel creates such a blade.
Uriel, a supporter of Lucifer is trying to recruit angels to his cause, which is to help free Lucifer from hell. When they refuse Uriel kills them with his angel killing sword. Eventually Anna uses it to kill him.
Castiel carries the blade with him when he meets with Anna. It is also one of the items that Castiel puts in the bag he gives to Sam before they travel through time. A young Mary Winchester uses this blade to defend herself against Anna, but it is knocked out of her hand.
Castiel uses the blade to kill two angels, each carrying an angel-killing blade of their own, before finding Adam Milligan in a grave. He later uses the blade to kill an angel who is guarding the Green Room before banishing himself and three other angels (all carrying their own angel-killing swords) with an Angel Banishing Sigil drawn on his chest.
Kali takes what she believes to be Gabriel's sword and kills him with it. However, this was merely a trick on Gabriel's part as he was still alive and had given her a fake. He does confirm that the blade of an Archangel can kill Lucifer. Gabriel confronts his brother with the sword but is himself killed (for real this time) when Lucifer turns it on him.