This WoW papercraft model is the Frostmourne, from the MMORPG game World of Warcraft. The papercraft is designed by Apocalipsis. The size of the paper craft sword is 70 x 20.3 x 6.9cm. Frostmourne was the runeblade that Ner'zhul, the Lich King, thrust from the Frozen Throne, intending that Arthas Menethil - his unwitting potential host - would discover it on the continent of Northrend. It was wielded by Arthas, the new Lich King, until it was destroyed following his defeat in Icecrown Citadel.
A gold plated replica of Frostmourne's hilt is now on display in Dalaran held in place on the statue of Tirion Fordring. No true record of the weapon's actual remains has been recorded.
You can download this World of Warcraft paper craft model from here: World of Warcraft - Frostmourne Sword Free Paper Model Download