The strongest Jutsu

[grenwood]

Edo Tensei's strength depends on the actual Edo's that you summon. If the user summons fodders, then it ain' so powerful is it.

You specifically said no kekkei genkai, so other than that, I'd say:

Shiki Fuujin

C0 explosion

Kirin

FTG - it isn't powerful in terms of brute power, but it's such an OP technique if used efficiently.

a fodder with unlimited lives is no longer a fodder though. the opponent has to die eventually ubless the edo fodder is facing another fodder. hell oro couldve summoned any two fodders to kill the third, but he chose op characters for emotional reasons.