An apparatus comprising: (a) a shaft assembly, wherein the shaft assembly comprises: (i) an outer sheath defining a longitudinal axis, (ii) a staple actuation assembly slidably housed within the outer sheath, wherein the staple actuation assembly is configured to rotate from a first angular position to a second angular position about the longitudinal axis, and (iii) a trocar assembly slidably housed within the outer sheath; (b) an end effector configured to drive a plurality staples into tissue, wherein the end effector comprises: (i) a staple deck defining a plurality of staple openings (644, 645), wherein each staple opening in the plurality of staple opening (644, 645) houses a corresponding staple, (ii) an anvil configured to couple with the trocar assembly, wherein trocar assembly is configured to actuate the anvil toward the staple deck to compress tissue between the anvil and the staple deck, (iii) a first staple driver configured to drive a first corresponding staple through a first staple opening of the plurality of staple openings (644, 645), wherein the staple actuation assembly is configured to translate within the outer sheath in the direction of the longitudinal axis and at the first angular position, to drive the first staple driver, and (iv) a second staple driver configured to drive a second corresponding staple through a second staple opening of the plurality of staple openings (644, 645), wherein the staple actuation assembly is configured to translate within the outer sheath in the direction of the longitudinal axis and at the second angular position to drive the second staple driver; and (c) an electrically powered drive assembly operable to actuate at least the first and second staple drivers (750, 770). (a) a shaft assembly, wherein the shaft assembly comprises: (i) an outer sheath defining a longitudinal axis, (ii) a staple actuation assembly slidably housed within the outer sheath, wherein the staple actuation assembly is configured to rotate from a first angular position to a second angular position about the longitudinal axis, and (iii) a trocar assembly slidably housed within the outer sheath; (i) an outer sheath defining a longitudinal axis, (ii) a staple actuation assembly slidably housed within the outer sheath, wherein the staple actuation assembly is configured to rotate from a first angular position to a second angular position about the longitudinal axis, and (iii) a trocar assembly slidably housed within the outer sheath; (b) an end effector configured to drive a plurality staples into tissue, wherein the end effector comprises: (i) a staple deck defining a plurality of staple openings (644, 645), wherein each staple opening in the plurality of staple opening (644, 645) houses a corresponding staple, (ii) an anvil configured to couple with the trocar assembly, wherein trocar assembly is configured to actuate the anvil toward the staple deck to compress tissue between the anvil and the staple deck, (iii) a first staple driver configured to drive a first corresponding staple through a first staple opening of the plurality of staple openings (644, 645), wherein the staple actuation assembly is configured to translate within the outer sheath in the direction of the longitudinal axis and at the first angular position, to drive the first staple driver, and (iv) a second staple driver configured to drive a second corresponding staple through a second staple opening of the plurality of staple openings (644, 645), wherein the staple actuation assembly is configured to translate within the outer sheath in the direction of the longitudinal axis and at the second angular position to drive the second staple driver; and (i) a staple deck defining a plurality of staple openings (644, 645), wherein each staple opening in the plurality of staple opening (644, 645) houses a corresponding staple, (ii) an anvil configured to couple with the trocar assembly, wherein trocar assembly is configured to actuate the anvil toward the staple deck to compress tissue between the anvil and the staple deck, (iii) a first staple driver configured to drive a first corresponding staple through a first staple opening of the plurality of staple openings (644, 645), wherein the staple actuation assembly is configured to translate within the outer sheath in the direction of the longitudinal axis and at the first angular position, to drive the first staple driver, and (iv) a second staple driver configured to drive a second corresponding staple through a second staple opening of the plurality of staple openings (644, 645), wherein the staple actuation assembly is configured to translate within the outer sheath in the direction of the longitudinal axis and at the second angular position to drive the second staple driver; and (c) an electrically powered drive assembly operable to actuate at least the first and second staple drivers (750, 770).