Reckless Ringleader
Perpetual haste is a stranger concept than it sounds, and it only exists because this card lives in a digital-only frame where a keyword can be stamped onto a card and stay stuck to it across zone changes for good. The enter-the-battlefield trigger reaches into your hand and picks a fat threat already sitting there (the finisher you're holding, the six-drop you can't afford to leave inert a turn) and welds haste onto it while it's still uncast. That reframes what the one-mana body is buying: not a 1/1 with haste, but a promise that your next real play arrives swinging. The design leans on a specific weakness of top-end creatures, the dead turn between casting them and attacking with them; this deletes that turn in advance, at a cost you pay early. The catch is sequencing. The trigger fires exactly once, so you have to already be holding the creature you want to accelerate when the Ringleader lands, and the modification rides on that specific card in hand. Even if the chosen threat is discarded or countered on its way down, the haste stays welded to it and can still matter if the card returns and is cast later. Granting a permanent keyword that survives to the graveyard and back is a mechanic paper cannot template without an army of tokens or counters, which is precisely why it took a digital frame to make it read this cleanly.
