Impolite Entrance

The math here is old and reliable: a one-mana cantrip whose buff rides along on the back of a card draw, so the spell replaces itself the moment it resolves. Trample-and-haste effects usually get printed as pure enablers, the kind of thing that sits dead in hand late when you have no fresh threat to point it at. Stapling a card draw onto the effect raises the floor considerably. If the buff is irrelevant, you have spent one red mana to swap this for something new; if it lands on a creature that just resolved, the draw is a bonus on top of a real tempo swing. That replaceability is what separates a maindeckable trick from a sideboard curiosity, and it is nearly bulletproof: the only time you cannot cast it is a fully empty board, since the card demands a target creature to attach to. Haste is the more decisive half of the rider. Trample turns a chump-block into a partial connection, but haste rewrites the sequencing, letting a threat cast this turn swing the moment it lands rather than waiting a rotation. Because it is a sorcery, the whole thing is a proactive main-phase play: you commit to the aggression before combat and let the cantrip pay for the commitment. Red has spent decades engineering spells that refuse to become dead weight, and this is that instinct distilled to a single pip, priced so the draw carries the card even when the buff is decoration.