Are you referring to my suggestion or to Porygon's?
I think they were referring to mine because it slims down their deck quite a bit.
SoSa, this, two Silence. Four Card "OTK" (Okay, it's not an OTK, but what the hell can the opponent do?)
Not necessarily, the opponent could be running a Fire Rush or a RushBow and can beat you off of brute monster strength in about 4 turns, which is Far less than it would usually be to gain the necessary quanta for Final Standoff
Which is why the usual OTK gimmicks exist. Sundial, you know. And SoSac also stops the four turn rushes if you time your death right. Upgraded Sundials cost nothing. Run Bone Tower with a few pends, SoSac, this card; Silence, Sundial, and Aether Mark. Pretty OP-ish if you ask me.
And it is, quite necessarly, a Kill. What can you do when SoSac is up and you can't play cards; further more that you're going to die in the next two turns?