Gilgamesh

Abilitiesamesh is the most powerful existence among the Servants in both the Fourth and Fifth Holy Grail War and the strongest Heroic Spirit. He is placed into the Archer class because of his main Noble Phantasm, Gate of Babylon. It grants him access to all of the world's treasures that he collected during his life, which include prototypes of other heroes' Noble Phantasms, and he can launch them as the strongest arrows towards his opponents. While he may sometimes choose to wield them as regular weapons, he mainly fights by raining down an infinite amount of weapons on his opponents. The most trusted Noble Phantasms contained within include Enkidu and Ea. While he has numerous Noble Phantasms, none are indicative of his true identity, and the only person through both Holy Grail Wars to figure out his identity without being told is Rider, though Shirou is able to guess after he gives a number of details about himself. The energy of his soul is worth that of hundreds of thousands of souls, and taking him in is enough to fill a partially-full Lesser Grail even while it lacks several other Servants.

He has the skill Golden Rule, being fated to a life that is filled with riches. It does not measure the percentage of gold in one's body, but the chance of attracting gold in one's life. The level of gold provided by rank A will make the user incredibly wealthy to the point where money trouble will be unknown, allowing him to live the life of a. While it seems unrelated to battle, it plays a great role in arming him. Claiming all the world's treasures as his own, he obtained the originals of Noble Phantasms preserved in his treasury during that period.

He has a very high rank of Charisma with the influence to build a grand empire on a global scale. He is often praised as the greatest king, so his ability to command and lead great armies is excellent. It is a rare talent, and even a B rank is sufficient enough to lead a nation. Gilgamesh has a rank of A+, making it no longer a matter of popularity or skill, but closer to something like sorcery or curse. Any army led by him will have a tremendous increase in abilities because an egotistical Gilgamesh radiating with self-confidence is sure to boost the morale of his army to an extremely high level.

He would normally possess the highest rank of Divinity among all Heroic Spirits due to being 2/3 God. He is at a level even exceeding Heracles, the son of Zeus who ascended to the Pantheon after death. The rank is instead decreased from A+ to B because of his hatred of the gods, who killed his only companion, Enkidu, unleashed the Bull of Heaven onto the earth, and caused him much trouble in his life.

Combat
Gilgamesh's compatibility against Heroic Spirits is great due to the versatility of his weapons, allowing him to assault the weakness of any Servant. He is about as physically strong as Saber or Berserker, if not slightly weaker, and he would not receive a boost in power from fame due to not being well-known in Japan. The main reason for his overwhelming power comes from the sheer number of Noble Phantasms in his possession. All Heroic Spirits have things they were weak against in life, their greatest weak points, and he possess all of the Noble Phantasms, including those that killed each hero. He can be called the "Servant Killer" because he has an advantage over most of them in combat and because they are no match for him. While there would be no competition between him and Saber in terms of direct swordsmanship with the same Noble Phantasm, he does not display power as an "individual" soldier, but rather as a "war" that even the strongest soldier could not overcome by himself. Only those who are a "war" themselves will be able to compete against him. In terms of the "firepower" available to him due to the versatility of his weaponry, he can be said to have the strength of "5 Servants + a", a force able to match all the Servants and Masters defending the town in Fate/hollow ataraxia, putting him at an advantage against those like Arcueid Brunestud whose strength is based on the "single entity ability" of the opponent rather than their weaponry.

Gilgamesh's pride and carelessness often keep him from fighting seriously, considering it to be unbecoming to be serious for the Holy Grail. As his dignity cannot be yielded, such weaknesses "kind of balance out" with the firepower of the other participants of the Fourth Holy Grail War when he could simply end it in one night should he wish it. Kotomine comments that his notion of overlooking "worthless and meaningless things" is one factor that can lead to his defeat because "there are worthless things, but there are no meaningless things." Shirou describes that along with his great power that he was "given the fate of being raised with his 'carelessness' skill maxed out." He considers his title as a king "constrictive" in a sense that his pride will not allow him to go all out against people he considers to be unworthy, seeing taking such a person seriously as himself being defeated. He will refuse to use Ea against anyone unworthy, either hesitating with its usage or testing them to make sure they are worthy of it. He describes his going all out in Fate/hollow ataraxia as a once in a lifetime whim, and he would have been able to conquer the four day loop of by himself had he not turned himself into a child. Although the strongest existence among the Servants who cannot be rivaled when he is serious, he loses against Saber due to obsession, loses to Shirou due to pride, and loses to Sakura Matou due to carelessness. It can be said he is forced to bend his knees before the universal law of "love conquers all" in Fate/stay night, but is allowed to "show off his overwhelming, cheat-like strength without restraint" in Fate/Zero.

He normally does not care about his attire in battle while playing, but claims there are some restrictions for a serious, dignified battle. As he does not favor hand to hand combat, exercising his true power only requires his body and the key to his treasury. He has the absolute self-confidence to calmly show himself before his opponents, but he is also apt to simply kill by raining Noble Phantasms behind his enemies' backs depending on his mood. The will of the king cannot be simply gauged by the concept of tactic. Saber believes the only way to stand a chance against him is to take him down before he gets serious. If he has a natural weak point besides his tendency not to fight seriously, it is that he is not a master of his weapons. He is not a "wielder" who has mastered his weapon to the limit, leaving some room for counters like Unlimited Blade Works. Knight of Honor is said to be a natural counter to him, though Berserker is only able to put up a fight through Mad Enhancement boosting his abilities.

Gilgamesh possesses clairvoyance, taking the form of the Noble Phantasm Sha Nagba Imuru. He is extremely perceptive of magecraft, allowing him to see through Caster's fake death and tell the exact number of spells a magus is preparing just by looking at them. He is able to predict the exact number of Projections prepared by Shirou, and asks what kind of hero he would be if he could not see through a magus. He is also capable of accurately assessing his opponents' abilities. He would not even consider having a battle of swordsmanship with Assassin, and while he plays around with a weakened Saber in Fate, he immediately backs off from her to avoid hand-to-hand combat during Unlimited Blade Works after she receives a boost in power from her contract with Rin.

He normally wears Golden Armor (黄金の甲冑) materialized from magical energy much like Saber's armor. It is extremely strong to the point that Shirou initially assumes that it is his main Noble Phantasm. It has a strong innate Magic Resistance, and it is durable enough to block Tsubame Gaeshi and numerous strong blows from Saber simply by protecting his head with his hands. He eventually stops playing around despite his armor not being in any danger of giving out to her attacks. Shirou believes she would have been able to slash through it if she were to relaunch her barrage of attacks. He claims that he does not need it while playing around, and that it is only crucial for guarding against evil spirits like, due to it being anti-petrification equipment, and gigantic bulls.

He did not have any abilities to resist magecraft during life, so he only gains Magic Resistance as the class ability of the Archer class. He obtains C rank under Tokiomi, allowing him to completely nullify magecraft under two verses, but he is still susceptible to High Thaumaturgy and Greater Rituals. It is lowered under Kirei due to his lack of magical energy, and remains at only the minimal level, rank E, that provides light damage mitigation against magecraft rather than full neutralization. The state of his Magic Resistance matters little, as he is able to neutralize most magecraft with his many items that defend against it. His armor and a shield are able to repel A rank magecraft with ease. Overall, he is much more likely to simply unleash a raging wave of Noble Phantasms against "mongrels" impeding the king by attempting to use large-scale spells, completely crushing them without even giving them the time to cast.

Independent Action
Gilgamesh has a high rank of Independent Action, rank A, allowing him to easily utilize his Noble Phantasms and remain in the world without Tokiomi's backup. He is able to easily ignore his Master's orders, making it possible to stroll around without making his Master aware of his whereabouts. The only way to command him is through the use of Command Spells, but his disposition that does not even contain an ounce of respect for his Master makes utilizing them idly a bad move. Utilizing Noble Phantasms of great power does require backup from his Master.

After being materialized, he gains the rank of A+, completely setting him apart from the rest of the Servants by allowing him to operate without a Master. Exceeding his previous rank, the support of the Master is unnecessary even while unleashing a large amount of magical power. It is an ability that bends the rules, and it allows for his continued materialization as a Servant even after the conclusion of the Holy Grail War for ten years. While he was always able to operate without regard for his Master, gaining a physical body is what allowed for him to remain materialized after the Holy Grail War. While he accepts energy supplied by Kirei from a number of orphans, he claims that the act was unnecessary overall.

Incarnation
Gilgamesh is doused in a torrent of the black mud, the incarnation of All the World's Evil, spilling from the Holy Grail during the Fourth War. His body is instantly broken down and absorbed into it, becoming one with the flow. Servants are normally corrupted and blackened upon contact, but Gilgamesh is unable to be controlled or blackened due to his powerful ego that can stave back the mental pollution. He claims that someone would need at least three times that amount to even think about affecting him. However, the incarnation inevitably makes his human side resonate with the people of the era, making him much more destructive and impulsive in the Fifth Holy Grail War compared to the Fourth.

It is normally impossible for correctness and affirmations to exist with the cursed vortex of hatred because all has determined that everything is ugly and hateful, so the words "yes" and "that is right" appearing within is an anomaly. It does not allow the existence of "entities", so such a thing should not be possible. It questions these affirmations, and gets a response. Gilgamesh, as the king, will acknowledge that the world was originally such a way, he will permit it to be so, and he will bear the burden of sin for the entire world. It then asks "what is a king?", causing a contradiction in that it admitted there was someone else within it

Gilgamesh is recognized as a strange foreign object that cannot exist, and the King, a presence that is an absolute controller that has no equal, announces his presence and frees himself from the mud. The only change after being temporarily absorbed is that the saturation converts his spiritual body to one of flesh and blood like the blackened Servants. It could not digest him even after utilizing all of its hatred, so it crystallized the impurity within itself and abandoned it. He was given a corporeal body and regurgitated back into the present world. Becoming completely incarnated, he continued to survive as an existence with a physical body.

Due to the connection, the Grail attempts to turn him into a host in Unlimited Blade Works in a last ditch effort to survive even though a Servant cannot become its core. It opens a black void on his body that proceeds to instantly swallow him. He managed to partially escape, but needs an anchor to keep from being sucked in completely. It begins to melt his body in various places, and the void shrinks into nothingness after he sinks into it.

During Heaven's Feel after being devoured by Sakura, she quickly converted him to mana in haste because she was afraid he might tear her up from the inside if she does not digest him. It also has to do with the power behind the curse, as the "mud" cut off from the main body that he managed to "beautifully escape" and the "shadow" connected to the thing itself are of different quality. There is also the effect Sakura has as the Grail itself, as he was materialized under the Grail System. Regardless if he is incarnated or spiritual, he cannot resist the Grail, and due to the large amount of mana she absorbed from him, she buckled like a broken dam.

Creation and Conception
When selecting heroes for Fate/stay night, Gilgamesh was chosen as the oldest and most obscure hero that Kinoko Nasu and Takashi Takeuchi could find in contrast to the well renowned Heracles. While there were other candidates, they liked his strong sounding name and myth. The overall concept of the character was changed very little since his initial conception.

It is revealed that Gilgamesh's overall design and appearance was heavily based on Gilgamesh from the franchise. Nasu "selfishly demanded" that "Gilgamesh must wear a full golden plate armour" during the designing stage, reasoning it to be that Gilgamesh would have needed it to repeatedly challenge some sixty-story building in his era.

Reception

 * In the first Popularity polls of Fate/stay night in 2004, Gilgamesh was ranked 13th and the fifth most voted male character.
 * In the second Popularity polls of Fate/stay night in 2006, Gilgamesh was ranked 13th and the fifth most voted male character.
 * In the Type-Moon's 10th Anniversary Character Poll, Gilgamesh from Fate/stay night was ranked 9th and the third most voted male character. Gilgamesh from Fate/Zero was ranked 74th.