The user can kill a deity/deities or any divine embodiment they may choose to get rid of. They are resistant to the effects of a deity and are capable of killing the specified deity. The user may be a deity with vast or corrupting powers or a being higher than a deity. Because deities are powerful and numerous, it may require instigating a war to kill them all at once.
Gilgamesh (Valkyrie Crusade) is a murderous deity that kills other gods, being know as the god-slayer.
Goetia's (Valkyrie Crusade) fire can burn virtually anything, even gods, to ash.
Longinus (Valkyrie Crusade) wields the holy spear Longinus, that can destroy deities.
Ragnarok (Valkyrie Crusade) is a WMD that can kill deities.
Ryu Hayabusa (Ninja Gaiden) is a ninja of the Dragon Lineage. Although he his human, he possesses connections to philosophical and spiritual arts. Due to this, Ryu is able to push past his physical limitations, allowing him to defeat supernatural beings and even supreme deities.
Shinbu (Kingdom of Paradise) is a powerful warrior who was able to master all five Sword and Chi Arts of the Five Clans, then learned the San'Yuan in its purest state killing Genbu, Suzaku, Byakko, Seiryu, and Banko.
The Hunter (Bloodborne) was able to kill several Great Ones - Lovecraftian Gods worshiped by the people of Yharnam - with nothing but brute force.
Asura (Asura's Wrath) was not only able to slay the Seven Deities, but was even able to kill Chakravartan, the creator of the Universe.
The Chosen Undead (Dark Souls) was able to slay a pantheon of gods with nothing but his/her shield and a sword.
to be the downfall of Olympus. Because of this, Zeus betrayed him and sent Kratos on a path of vengeance and desolation all aimed at the Gods.
Satanael (Persona 5) was able to kill Yaldabaoth, the God of Control, in a single hit of its Sinful Shell.
In addition to his both monstrous strength, Shiba Kyouichi (Shinmai Maou no Keiyakusha) is a user of "Ars Decidium", a special combat form that focuses on the art of killing high-level gods and demons alike.