Nanatsu no Taizai: Mokushiroku no Yonkishi Episode 24 English Subbed Episode Title: Advent Episode Description: Percival is assisted by Isolde against Mela-Galland, but both are outmatched against Mela-Galland despite Percival's newfound power. Tristan saves Isolde and, angered by her injuries, fully taps into his demon side after requesting Hendrickson to summon Lancelot for him. Tristan's demonic powers allow him to defeat Mela-Galland, but also cause him to lose all self-restraint and brutally maim Mela-Galland to death; sensing Tristan's predicament, Meliodas prepares to enter the battle to support him. Upon Mela-Galland's death, Arthur descends from the sky on a staircase made of rubble from the battle to personally assess the Four Knights' strength. Percival and Tristan charge towards Arthur, but he effortlessly deflects them and brandishes hundreds of magic blades in a display of power that immobilizes his opponents.