Able Companion is a Daily power available to Wizards at 6th level[Dr380]
Able Companion
Wizard Utility 6
You conjure a creature of many hands and feet that aids your allies
Daily ✦ arcane, conjuration
10
Effect: You conjure an able companion in an unoccupied square within range until the end of the encounter. When an ally starts its turn adjacent to the companion, that ally can stand or shift 1 square as a free action. You can move the companion 2 squares as a minor action or 6 squares as a move action.