Here it is:
MACHINE'S LOAD
1 transmutation (clockwork)
Casting Time: 1 action
Range: Touch
Components: V S M (a 1-lb weight)
Duration: Up to 1 minute
Classes: Druid, Sorcerer, Warlock, Wizard
You touch a creature and give it the capacity to carry, lift, push, or drag weight as if it were one...