Orochimaru konoha traitor is a shell of his former self due to the nerf in the resurrection. Also consider that atm the 2nd cast of edo tensei for tobirama is pretty much useless 'cause he won't use his mystery... you will get better results using mabui + gnw tenten for a round 1 mystery.

If you still want to use him, consider using kabuto (this way he shouldn't kill kimi to resurrect)