User blog comment:Ultimate Mega Gamer/UMG's Weekly Thumbnail Contest 2/@comment-27367414-20171222104933/@comment-27367414-20171222140515

So first, 'UltronSigma' is just to point out Ultron-Sigma in the background, 'VSUltronandSigma' is just to say if the TN secretly was supposed to be Ultron and Sigma against Ultron-Sigma, then the last part is just to deny it.