The primary strategy involves accelerating Narset onto the battlefield early (often T2-T3), granting haste, and chaining extra turn spells (e.g., Temporal Manipulation, Time Warp, Alrund's Epiphany) to repeatedly attack and exile cards
From among the main set extended-art legends, there are 40 uncommons, 44 rares, and 14 mythic rares
There are plenty of things coming to TCG Card Shop Simulator soon that will improve the experience even more, and there's tons of untapped potential there right now
Since your opponent gets a copy too, they get all the same effects as well
Some cinemas will be showing an advert featuring the new Collection Starter Set (which also has a similar promo), and a QR code on an insert in the promo pack will link to a purchase page for it
It is also worth mentioning that this card is now legal in the Modern format