They are classified in the main type-themed sections of the set and were represented by EX in the Black & White and XY eras, GX in the Sun & Moon era, and V in the Sword & Shield era
The deck has tons of interesting tech, from Majestic Genesis playing 12 cards from the top of our library to Dragon Throne of Tarkir being a massive overrun to Ezuri's Predation wiping out smaller creatures and providing a discount to Ghalta to one-shotting people with a surprise Boon of Boseiju on Ghalta
However, it looks like the TCG Konami branch have no interest in bringing these cards in
Backdraft has a really hilarious armour piece sticking its tongue out while the caster looks in horror as his magical spell is about to slam him in the face
Nykthos, Shrine to Nyx is another card that isn't easy to find, and it's versatile enough to be useful in most mono-colour decks
The English 1st Edition print is scarce and costs more than most cars