Roiling Vortex One of those cards that screams Sideboard Me! really loudly, Roiling Vortex shows up in those boards for red aggressive decks across formats, most recently in Rakdos Breach decks in Timeless
Despite Magic: The Gathering's fantastical settings, which tend to lean towards Goblins, Elves, and the like, Dogs have made a home for themselves here too
When the first buyers, driven by a powerful fear of missing out, pay that price, it validates the high cost and creates a feedback loop
Ragavan, Nimble Pilferer One of the strongest Red cards to ever hit any format, Ragavan, Nimble Pilferer will give you cards and mana
Celes, Rune Knight Celes, Rune Knights main ability is to discard your hand and draw new cards, and it effectively sets up many synergies: discard, draw, combos, unearth, reanimate, you name it