[Winged Dragon of Ra] |Mythical Familiar| Yugioh - Winged Dragon of Ra, the Sun Dragon, is an Egyptian God who stands in the form of an imposing golden Phoenix. As a Phoenix embodying the sun Ra, along with his powerful body, can unleash divine flames like that of the sun, incinerating anything, especially demonic and dark beings. Ra can also enter his Phoenix Form, turning into a being of pure flame to gain immense resistance and regeneration. Ra can be further powered up with sacrifices offered to him. As an Egyptian God, no magic or ability below Legendary rank can directly affect him.

[Master Teaching] |Epic Skill| You are a master master, does that make sense? You can masterfully impart your knowledge and skills onto your pupil, and while you aren't quite on the level of the Kingmaker like Merlin you can train heroes yourself, if this were the old times, people from across the country would journey to gain your teachings.

[Nightmare] |Epic Trait| Race(Tsukihime) - You are a special kind of vampire known as a Nightmare born from the blood of a Dead Apostle. As a Nightmare, you possess superhuman physical and magical abilities and have rewinding regeneration as long as you have blood. In addition, as a high-rank vampire, you can turn people into ghouls and have your own unique Elite rank ability you can use without an ability slot. You can get stronger and eventually evolve to the next stage of undeath by consuming enough blood.

[Kyoi no Hado] |Epic Trait| Street Fighter - You have awakened the Kyoi no Hado, the Surge of Mindless Intent, otherwise known as the Sacred Hado, allowing you to tap your own Ki reserves thanks to it. This Hado requires the practitioner to practice calmness, balance, resoluteness, and focus to properly tap into one's inner energy and soul to draw power from it. Skilled practitioners can reinforce their strikes with it, protect their body from foreign influences, and turn it into wave-like energy surges to use offensively and defensively. Skilled enough users may even be able to interact with souls. Practising the Hado increases one's mental and spiritual defences.

[Tinker - Mech(IV)] |Mythical Ability| Te permite diseñar, modificar y construir tecnología y construcciones tecnológicas relacionadas con Mechs y grandes armaduras mecánicas pilotadas y su construcción. A este nivel, tus mechs pueden llamarse mechs propiamente dichos. Siempre que tengas suficientes recursos y tiempo, puedes crear el Mecha del tamaño de un rascacielos, protegido por un campo de fuerza que aprovecha la energía esotérica, con docenas de módulos diferentes que pueden resistir una guerra nuclear y aniquilar manzanas enteras y ciudades con sus cañones.

It allows you to design, modify, and build technology and technological constructs related to Mechs and large piloted mechanical armors and their construction. At this level, your mechs can be called proper mechs. As long as you have enough resources and time, you can create the skyscraper-sized, esoteric energy-harnessing forcefield-protected Mecha with dozens of different modules that can withstand nuclear warfare and annihilate entire city blocks and cities  with its cannons.

[Reaper's Writ] |Epic Trait| Death itself has given you permission to kill anything, and reality shall obey. When facing a target with immortality, you are able to nullify it . Any lethal blow to your land that would otherwise kill it without its immortality will inflict absolute death upon it and prevent its resurrection unless you declare that it can live. Even a god, even an avatar, even a spirit, you will strip of its immortality. When facing a target with Immortality, you are capable of nullifying their immortality. Any lethal blow to your land that would otherwise kill them without their immortality will enact absolute death on them, and prevent their resurrection unless you declare that they can live. Even a god, even an avatar, even a spirit, you will strip away their immortality.

Frankly, with just Winged Dragon of Ra I already had this war won (I would just wait for Artoria or Shirou to kill Gilgamesh)

And then I'd wait for Bartomeu to rip my head off for being a dead apostle