If a double-faced card is cast as a spell, it's put on the stack with its front face up
It is also used to talk about specific kinds of monsters, such as Fusion Monsters, but you can again just simply say Fusion Monster instead, without the "Card" part at the end
That would be the PSA 10 Pikachu Illustrator , as it was a Japan-exclusive promotional card, thanks to being the prize for a Corocoro Comic contest
It can also be applied to Mecha Phantom Beast, and can be used to further strengthen Tether Wolf, making it a good match
But in Weatherlight Limited formats, a 4/4 flying jelly that attacked every other turn was actually kind of good when you only tapped your lands for Disrupts and Abjures
Thats just one more in the long list of reasons this is a horrible, doomed idea.