Madding Hand is a Fist in Elden Ring. It is a brand-new Fist in the Shadow of the Erdtree DLC. The Madding Hand scales primarily with Strength, Dexterity, Intelligence, and Faith and is a good Weapon for inflicting Madness.
The Madding Hand weapon can be found at the following location: South of Woodland Trail site of grace in the Abyssal Woods. Drop by Madding Hand enemy. [See Shadow of the Erdtree Map]
Weapon Skill: Madding Spear-Hand Strike
This weapon cannot be infused with Ashes of War
Madding Hand can be upgraded by using Somber Smithing Stones
acts like a fire infused weapon would, increasing both physical and fire damage with strength
Other notes and player tips go here

Attack
Guard
Scaling
Requires
Skills: Madding Spear-Hand Strike
Damage Type: Strike
FP Cost: FP 13
Weight: Wgt. 1.0
"A glove stitched together from the flayed skin of the victims of a butcherous bloodbath. Afflicts target with madness. Raises attack power when madness is triggered in the vicinity. Forged of an unyielding, black impulse toward revenge fostered in those who were hunted down as heretics by their own brethren, these are the weapons of the utterly downtrodden. "