When doing a Link climb for OTK, Devyaty is usually the Infernoid that youll pair with Loading
Sidisi, Regent of the Mire Sidisi, Regent of the Mire snuck in last minute as a new addition from Tarkir: Dragonstorm
If you build your deck around drawing cards, you may also want to include wheels like Jace's Archivist and win cons like Laboratory Maniac or Thassa's Oracle
Just attack with the other XYZ monster, go to main phase 2, rank up the Assembled Nightingale into Downerd Magician, and then rank her up into Zeus
WARNING: You might think that cards from your Vault dont matter, since you can only have one copy of each card in your deck, but this is not the case
If you want, you can turn it into Isilu, Carrier of Twilight, which gives your creatures persist