Each of the Godzilla Challenger Series decks includes a different Mechagodzilla card. These can't lead the deck, but as both Rodan and Ghidorah have the Void attribute, you can run Mechagodzilla ...

"The Apex predator, A rival alpha to Godzilla. New item King Ghidorah 2.0 from Godzilla: King of the Monsters (2019) joins Hiya EXQUISITE BASIC Series! In the film King Ghidorah is first seen ...