Scepter of the All-Knowing is a Hammer in Elden Ring. The Scepter of the All-Knowing scales primarily with Strength, Dexterity, Intelligence and is a good Weapon for heavy attacks. 

Elden Ring Scepter of the All-Knowing Notes & Tips

• Weapon Skill: Knowledge Above All
• This weapon cannot be infused with Ashes of War
• Scepter of the All-Knowing can be upgraded by using Somber Smithing Stones
• This weapon has rare thrusting variants of the hammer moveset on its running R2, rolling R1, and backstep R1, shared with Morning Star.
• Reduce enemy’s and your magic and holy damage negation. So basically a 10% buff to your magic attack. Lasts 60 seconds.
• Sell Value:   200.
• NOTE: As of Patch 1.08, the speed and distance of some attacks have been increased and the recovery time has been reduced.  While the poise damage of Hammers has been reduced, Poise damage when attacking with two-handed Hammers has been increased.
• NOTE: As of Patch 1.09, the scaling values of this weapon were changed. Please refer to the Upgrades Table of this weapon below. Additionally, running attacks speed increase with reduced recovery time for hammers.
• Other notes and player tips go here