Tenser's floating disk

Tenser's floating disk was an evocation spell that created a floating disk.

Effects
On casting Tenser's floating disk, a slightly concave circular disk made of force appeared floating about 3 feet (91 centimeters) above the ground. Its carrying capacity increased with the caster's skill where weight was concerned; its carrying capacity regarding liquids stayed static at 2 gallons (9 liters). At default, the disk followed behind the caster at a distance of about 5 feet (1.5 meters), but it could be ordered to float to anywhere. The disk and the caster needed to be within a certain distance that grew with the caster's skill; otherwise, the disk simply disappeared and the contents fell on the ground.

Components
Casting Tenser's floating disk required somatic, verbal, and material components. The last was a drop of mercury.