While the overwhelming majority of 4-way miscuts that you see are NFC, its important to note that there are also legitimate miscuts that show 3 or 4 cards
It takes a lot of cards that could just be fluff in most sets and makes them novel and memorable
Another win-con could be the usual Thassa's Oracle for cEDH, even without Demonic Consultation, as the deck focuses on milling itself out and/or drawing a lot, which cards like Scapeshift or Cephalid Coliseum can help achieve quite easily
What is the rarity of this Talonflame card
You can find the full list of legendary creatures, and this also includes the all-powerful monkey Ragavan, over at the Multiverse Legends card gallery
Blue-Red 4-Drops | Best Final Fantasy Draft Decks This deck is fairly straightforward - you want cards that care about playing 4+ mana spells, and spells that trigger them