Always reevaluate your sideboarding between Games 2 and 3
Tournament Rules Manual (January 16, 2026) All official tournaments also follow these rules. Comprehensive Rules (January 16, 2026) Official Rules Manual (June 23, 2023) Regarding cards that look at your opponent's Life for Online Play Several cards in OP-03 and later products have a text effect such as "Look at up to 1 card from the top of your opponent's Life cards, and place it at the top or bottom of the Life cards." For upcoming English version online events only, this effect will be treated as "Look at up to 1 card from the top of your life cards, or your opponent reveals up to 1 card from the top of their life cards." in order to accomodate for the practical limitations of a webcam tournament
Finally, there are Mirror Monster cards, which have a borderless treatment and depict some of the deadly creatures on Duskmourn , usually through the reflection of another object in the art
And if the stuff you play can keep Narset going (such as extra turns, extra attacks via Relentless Assault effects, and tempo), you can win in a few turns