Maybe a card idea gets filed and sticks forever, maybe it gets tweaked in playtesting, or maybe it gets cut completely. In the final Play Design Stage, a separate Wizards of the Coast team with a background in competitive Magic vets the nearly complete set for its competitive elements, sending back proposed changes to fix any balance issues
Other sets may not have a heavy knight theme but still feature powerful individual knightslike Wight of the Reliquary in Modern Horizons 3
We're just not making fans re-buy one of them every year because Foundations is going to be there in the background." But I think it's pretty clear this is a seismic shift
This is likely why the three most popular Mono Blue commanders are ones that provide mana advantage: Urza, Lord High Artificer turns all your artifacts into mana rocks, Orvar, the All-Form lets you easily make copies of your lands and/or mana rocks, and Minn, Wily Illusionist ramps out permanents (including lands) whenever your illusions die
(Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.) Creature - Demon Elesh Norn Vigilance Whenever a source an opponent controls deals damage to you or a permanent you control, that source's controller loses 2 life unless they pay
