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Disney Lorcana - Gameplay Although there are a lot of similarities between it and rivals, Disney Lorcana has a distinct flavor that's arguably more reminiscent of the Villainous series than anything else
(2020-11-10) When Xenagos enters the battlefield, your devotion to red and green will determine if a creature entered the battlefield or not for abilities that trigger whenever a creature enters the battlefield
(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
Other sets may not have a heavy knight theme but still feature powerful individual knightslike Wight of the Reliquary in Modern Horizons 3
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