Using Mewtwo & Mews Perfection ability lets you use attacks from any card on your Bench or in your discard pile with GX or EX in its name as long as you have the Energy
Now, a new Nordic Link Monster makes it easier to assemble the Synchro Materials needed to Summon an Aesir monster, and this Decks Extra Deck also comes with more high-powered Level 10 Synchro Monsters, including the legendary Ascension Sky Dragon
While not quite as immediately absurd as Roaming Throne, there's enough incidental landfall triggers that Ancient Greenwarden doubles
While Kaijus were generally better when True Draco was a popular matchup due to the deck's usual focus on only one monster, boards produced by decks such as SPYRAL, Infernoid, or Burning Abyss almost all include multiple difficult to bypass monsters
Opening is more reasonable than high-end grails, while sealed works if you like the balanced top end.