This paper craft is Mithos Yggdrasill, the primary antagonist and final boss of Tales of Symphonia, the leader of Cruxis, the organization that guides the world, the Ancient Hero of the Great Kharlan War, and the leader of the Desians. The paper model was designed by Orel67. He is a traitor to the world, turning against it when his sister, Martel was murdered by a human. He worked to give her her last wish in his own twisted form - the Glorious Age of Half-Elves.
Mithos is a Half Elf Angel being of the world of both Sylvarant and Tethe'alla, Mithos plan is to create the World Regeneration journey to allow a child of angel being to unlock the four seals of a world and going to the tower of salvation only to become the vessel of Mitho's sister Martel, Mitho's is seriously a bad dude when you get past is boyish form hes really trying to destroy both worlds only to revive his sister, Mithos goes crazy with his ideals that the two other Angels or Seraphim that helped him bring an end to the great war Yuan and Kratos both betray him for what he is planning to do Martel as well was in sorrow when her conciousness was brought through with help of Colettes body as a vessel, Martel tells Mitho's that what he has been doing is wrong, Mitho's would try to bring back his sister and make a new age called the "Age of Lifeless Beings". Mithos also puts on another form in which people call him Yggdrasil something that you might have heard from Tales of Phantasia.
Mithos misread Martel's last wish of a world with no racism, and turned it into a world where Half-Elves ruled. In order to do all of this, he created Derris-Kharlan using Origin's Eternal Sword.
However, Yuan Ka-Fai knew that Martel's true last wish was not what Mithos wanted, and he created the Renegades to stop Mithos and Cruxis. Yuan worked as a double-agent for both, leaning more towards the Renegades, in order to fulfill his fiance, Martel's, last wish.
You can download the paper craft model here: Tales of Symphonia - Mithos Yggdrasill Free Papercraft Download