Vasavi Shakti

is a divine spear possessed by Karna, a spear of light granted to him by the Thunder God Indra in the .
 In preparation for the final battle between Karna and Indra's son, Arjuna, Indra tricked Karna into removing his golden armor and took it away to help his son, but he came to adore Karna due to his noble behavior that reflected the divinity of Surya during the situation. Having taken something greater than Karna's life away from him, Indra felt that his own honor would be stained if something was not given as compensation, and personally felt that Karna, although the enemy of his son, could properly wield the spear.
 Granted in compensation for the armor was the spear, the power of the God of Thunder that he had never allowed any, not even his own son, but himself to wield, and it is said that even Indra, the King of Gods, was not able to handle this spear of light properly.
 Despite obtaining it, there were no records of Karna actually using the thunder spear in battle before his death.
It is a spear of mortality made of lightning that can only strike once, but it possesses the power to kill the gods themselves. Although he lost his armor in the legend, he still possesses it as a Heroic Spirit, so proper usage of the spear is tied into permanently removing his armor. He possesses it as a regular spear even with his armor manifested, but it is unable to activate its True Name in such a state. It is still a divine weapon even in its non-activated state, its "exquisite appearance" likened to a work of art that could only have been given by the gods. It is an enormous spear that is longer than Karna is tall, the head itself being a meter in length, and it possesses a size that makes it appear impossible for a human to wield. He utilizes the sharp tip and its great weight in heavy attacks, and the spear itself possesses ''power proportionate to an A-rank attack, dealing A Rank physical damage despite possessing B Rank Strength. This is attributed to Karna's martial prowess.Fate/Apocrypha - Volume 1 The spear itself is very costly in terms of energy consumption along with his armor and general energy usage.Fate/Apocrypha - Volume 2 It is called a "secret weapon among secret weapons" and "an article of rare beauty none have ever laid eyes upon", to the extent it is unknown if there is a corresponding treasure in the Gate of Babylon due to Gilgamesh being unable to recognize something that was never utilized in the legends.Fate/EXTRA CCC 
In exchange for converting the tremendous defensive power of his armor into the spear, he is able to equip it properly with its "Anti-Divine" ability. From the anecdote of handing over his armor to Indra, he is only entrusted with the god-slaying spear after dismantling, tearing up, and discarding the armor, peeling it off his whole body and being dyed in blood. Officially becoming the Noble Phantasm, the armor discarded by Karna fuses onto his already existing spear to become even more ornate. While he gives away his armor to Jinako Carigiri in Fate/EXTRA CCC, he is still able to forcibly manifest the spear at the cost of being rendered near death afterward. It is said to be able to destroy anything in a single hit, a single strike that removes all sorts of impurities.
 Its power is sufficient to kill gods. Therefore, Heroic Spirits are a matter of course; Monstrous Beasts, Phantasmal Beasts, Divine Beasts, Shields, Fortresses, Bounded Fields, and every single existence is equally meaningless before its might. However it fails to overpower Akhilleus Kosmos due to its unique properties. Even though the light of the spear melted, boiled and trampled upon its world, the Shield was able to stand against it as Vasavi Shakti's power is enough to destroy a "single" existence whether that be a person, an army, a fortress or a God. But killing a God does not mean killing a world. If the god is killed, then all that's left is a world without a god. Even without a god, the vast skies, earth, oceans will continue to limitlessly spread, mankind's triumphant song will continue to resound. What thwarted the spear was the world itself. However, after completely blocking the blast, the shield was destroyed as enduring the might of the spear was too much.Fate/Apocrypha - Volume 5 Fragment: Vasavi Shakti vs Akhilleus Kosmos Japanese Text
File:Karna unleashing Light Spears.gif|Karna unleashing Vasavi Shakti's Light Spaers towards Sieg.
File:Charlamagne Karna beam clash.gif|Charlemagne offsetting the strike using Joyeuse Ordre
File:Pashupata vs Vasavi Shakti .gif|Pashupata vs Vasavi Shakti
During his fight with Arjuna in Fate/EXTELLA LINK, Karna had the support of the St. Metropolita, which was supplying him with Magical Energy, giving him even more power than usual. Since Arjuna wouldn't have been able to charge his Noble Phantasm in time to defend himself from Vasavi Shakti, Charlemagne used his Joyeuse Ordre to offset it. Although it managed to offset most of the attack, he took considerable damage. When Karna fired Vasavi Shakti again a second time, Arjuna was now able to equally match it with Pashupata, having had enough time to get it ready. The resulting explosion of the two Noble Phantasms clashing sent Karna and Arjuna flying away.Fate/EXTELLA LINK - Day 6: The St. Metropolita, East GateFate/EXTELLA LINK - Day 6: The St. Metropolita, West Gate
When utilized in Fate/EXTRA CCC and Fate/Grand Order, he lifts into the air, causing the wing-like armor on his back to spread out into a wing of flames and manifests an identical wing and armor opposite of it. Pointing his spear at the enemy, the flames gather in the ring between the wings and converge into the spear. Released upon the enemy as a beam of light from the tip of the spear, it engulfs them in a massive explosion. The armor shatters into a number of red feathers that quickly fade away, causing him to say "It was inevitable."
==Development==
pako is the weapon designer for Vasavi Shakti.
 Kinoko Nasu calls it an "Indian version of a Buster Launcher." Karna is described as a "-style Servant" when he uses this attack due to both his appearance and the feathers scattered around by the attack, although Karna himself has no idea.
==References==
vi:Vasavi Shakti
Category:Noble Phantasms
Category:Anti-Divine Noble Phantasms
Category:Anti-Army Noble Phantasms
Category:EX rank Noble Phantasms
Category:A++ rank Noble Phantasms
Category:Spears
Category:Divine Constructs
Category:Noble Phantasms introduced in Fate/Apocrypha
Category:Noble Phantasms of Karna