Staff of Lordly Might

Staff, legendary (requires attunement) This staff has a head carved of onyx and a shaft of gold and functions as a quarterstaff that grants +3 bonus to attack and damage rolls made with it. The staff has properties associated with six different buttons that are set in a row along its length. Six Buttons. You can press one of the staff's six buttons as a bonus action. A button's effect lasts until you push a different button or until you push the same button again, which causes the rod to revert to its normal form. If you press button 1, the staff becomes a frost brand greatsword as the top half of the staff transforms into an enormous blade. If you press button 2, the staff's onyx head transforms into an enormous hammer, turning the staff into a magic maul that grants a +3 bonus to attack and damage rolls. If you press button 3, the staff's onyx head lengthens and transforms into an pointed tip, transforming the staff into a magic pike that grants a +3 bonus to attack and damage rolls. If you press button 4, the staff floats on top of liquid like a piece of driftwood. The staff can float with up to 4,000 pounds of weight attached to it. If you press button 5, the onyx head of the staff sheds bright light in a 60-foot-radius sphere and dim light for an additional 60 feet. If you press button 6, the staff will suck up 50 gallons of any liquid its head is placed in. Pressing this button again causes the staff to release all the liquid at once out of its head. Detect Magic. While holding the staff you can use your action to cast the detect magic spell from it. This property can't be used again until next dawn. Detect Secret Doors and Traps. While holding the staff you can use your action to search for secret doors and traps. If a secret door or trap is within 30 feet of you, the staff's onyx head pulses with light and points at the one nearest to you. This property can't be used again until next dawn. Thunder Strike. When you hit a creature with a melee attack using the staff, you can force the target to make a DC 17 Constitution saving throw. On a failure the target takes an extra 4d6 thunder damage and is knocked 20 feet away from you and lands prone. This property can't be used again until next dawn.