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. There was a distance that grew with the caster's skill, within which the disk and the caster needed to be, 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.