Delta Accel Synchro Summon (デルタ・アクセル・シンクロ) is a form of Synchro Summoning in the anime, in which there is one Tuner Synchro Monster and two non-Tuner Synchro Monsters used in the Synchro Summon. The only known Delta Accel Synchro Monsters are "T.G. Halberd Cannon" and "Cosmic Blazar Dragon". "T.G. Halberd Cannon" was used by Antinomy, when performing Top Clear Mind in episode 144. When he performed the Summon, the resulting energy caused a nearby giant star to explode and collapse into a black hole. Antinomy described it as "a Synchro surpassing Accel Synchro".