If you have very high initiative on your 1st position then edo minato is very good. You can combine him with Madara (5 kage) or Kisame (shark mode) or edo hashirama (but i don't think u are even close to getting him) and your enemies will have chakra drained every round, that of course if you have more initiative than ur enemies. Edo Minato requires other expensive ninjas indeed, but so does jonin minato (plus jonin requires bonds mistery as well).

My favorite team for Edo Minato (without his bond mistery) is him, Kisame (shark), Edo Itachi and Wind main.