Crestfaller

 is a gun that fires bullets which freeze enemies.

Trivia

 * Prior to the Advanced Gungeons & Draguns Update, this gun was included in.
 * The synergy is likely reference to the common phrase associated with drinking, as the associated items that activate the synergy are all drinks.
 * This gun is a reference to the Crestfallen Warrior from Dark Souls.
 * This gun resembles a Grav Gun from the Warhammer 40k universe.
 * This gun most likely was brought to the Gungeon by the Drunkard, explaining the synergy.