For Baptisms, all that is needed for it to be valid is the Trinitarian formula and water.
For the Eucharist, all that is needed for it to be valid are the words “This is My Body” and “This is My Blood.”
As such I’m guessing that the consecration of a bishop is done through one act, rather than the succession of acts. If this is so, what specifically consecrates a bishop? Is it the imposition of hands? Or is it with the anointing of oil?