Whispering Wizard
A repeatable creature-generation engine in blue almost always comes with a governor bolted on, because the color's spell density would otherwise make the payoff trivial: cast a hand of cantrips, flood the board, win from nowhere. The limiter here is the "only once each turn" line, and it declines the storm-style burst entirely. Strip that line and this becomes a build-around for chaining cheap spells into a wide board in a single turn; with it, you get a slow, honest faucet instead, one flyer per turn no matter how many spells follow. That points the card at grinding decks that trade a steady stream of removal, card draw, and interaction across many turns, not toward a single explosive one. The 3/2 body does the balancing work the trigger cannot: it dies to almost everything, so the deck cannot lean on it as a threat, only as the delivery mechanism for the tokens. Those tokens fly, which matters more than the modest count suggests. A stalled ground board with a rising line of evasive one-power Spirits is a genuine clock, just a patient one, and evasion is what turns "one token a turn" from a curiosity into a wincon. The turn limit is the whole reason this reads as a payoff rather than a loop worth banning; it is the difference between a value engine and a combo piece, and blue design has drawn that line the same way many times before.

