Top Secret Packs used

With the release of Beyond the Pendulum it can salvage you out of awkward starting hands due to not seeing enough scales. Not 100% necessary to pilot the deck but it is a no-brainer include if you're able to get a copy.
Same old Endymion stuff, try to establish scales such as Servent being your best starter and of course institution or spell power mastery can search you Servant . Order of activation in Endymion decks is a huge deal and can absolutely make or break boards so be aware of moments when you can/cant afford to be Ash'd.
Instant fusion for Millenium Eyes is a fantastic insurance policy that puts a body on field that can shield whatever link 2 you go into from being veiler'd, ogre'd or can be used to give Servant a counter (Instant Fusion) and prevent Ash Blossom on your Servant scale effect which is critical.
At the same time Millenium Eyes is a Spellcaster so it can even go into Selene after doing your classic Electrumite or Beyond the Pendulum combo. Selene can then reborn it via its effect which will keep Millenium eyes on the field for good and acts as another interaction/monster negation whilst on field.