A going second deck, like many Gren Maju decks out there, and running the Bystials for additional interruption, as well as to make Draco Berserker w/ Ringowurm, Utopia Beyond to help OTK, or Beatrice to dump Gizmek to either boost Maju or make a Rank 8. Chaos Angel can be made with any Danger!/Gizmek/Schwarzschild + Ringowurm, and any Lvl 8 + Ringowurm/token to make Chengying/Baronne, which helps set up a decent board when forced to go first, or you dont have a Rank 8 play for OTK.
Numbers Last Hope is good for making a sudden Draglubion/Numeron Dragon OTK, especially if your Danger! cards hit themselves, or you dumped stuff with Trade-in. You can use NLH to summon 2 kaijus too, as the highlander effect that would normally allow only 1 on your field is negated when theyre summoned before the XYZ summon from NLH.
Im main decking Nibiru mostly because people dont seem to be respecting it much lately, and I can side it out for Ash if needed. Twin Twisters is main decked due to all the Labrynth players I end up facing, as its a rough match up without backrow removal. Im on the fence with Eradicator, as we typically dont want to go first, which is where Eradicator works best, and the decks Eradicator hits the hardest (Labyrinth mainly) dont want to go second if they have a choice. I may swap it out for something else, maybe Hey, Trunade! if I'm particularly concerned with Labyrinth or Traptrix.