The way I see it, this game doesn't have any "Great" hammers. : r/darksouls3
Gargoyle Flame Spear | Dark Souls 3 Wiki
Draegore Nagendra on Twitter: "“Gargoyle Flame Spear”, “Gargoyle Flame Hammer”, “Storm Ruler”, “Crescent Moon Sword” and “Eleonora” concept art from the Dark Souls 3 Design Works book https://t.co/YyYuNpGox9" / Twitter
DARK SOULS III | Where to find the Gargoyle Flame Hammer and Spear - YouTube