Does Spiral need Dupe to be a Serpent Counter?

What makes Spiral good against Serpent
* Her hits reduce power gain
* Her blocks remove immortality
Neither need the dupe.

Generally, fight, fight, Serpent goes Immortal, block hit, rupture kills him

DannyB01

She absolutely does not need it unless you want 48k+ points with her in BGs instead of 45k+

Chief_Wiggum

She absolutely does not need it unless you want 48k+ points with her in BGs instead of 45k+

You can most definitely get 48k+ scores without the dupe. The only thing the dupe does in BG situation vs serpent is reducing/regen some block damage.