Hell's Gate is an aerial physical HP Attack for Sephiroth, learned initially at the start of the game. It requires 40 CP to equip (20 when mastered), 300 AP to master, and has Melee High priority. If it's stopped in midair, it will release a shockwave around Sephiroth to hit opponents, and if it connects with the ground, it will create a fissure of stone spikes with high reach that can knock away opponents not hit by the initial attack.
Hell's Gate returns as a HP Attack for Sephiroth, now requiring 30 CP to equip (15 when mastered) and 130 AP to master. If the player holds , they will rapidly descend downwards towards the ground. If Sephiroth connects with the ground, it will create the same fissure as before, but while descending the player can opt to let go of to release a shockwave from around Sephiroth.
Hell's Gate is a unique Soul Break exclusive to Sephiroth available via Masamune (VII). At the expense of one Soul Gauge segment unleashes a deadly dive from above dealing physical damage to all enemies equal to 336% damage potency of a conventional attack. This ability doesn't ignore rows.