2022 double masters booster box Magic the Gathering 2X2 Collector and 5–9 Common cards Magic The Gathering Double Masters

The cost reduction applies only to generic mana in the total cost of spells you cast with the permission granted by Urianger Augurelt's last ability

Your turn ends when all effects are over, and the Memory Counter passes zero in your opponent's direction

This is much cheaper compared to the market price, as seen at TCGplayer, which has it listed at around $528

The kicked version is Utter End, a slightly overcosted yet incredibly flexible answer

both white and blue offer a strong batch of early flyers and disturb creatures, and both possess the efficient interactive spells to help you hold serve and close out the game before bigger decks get into top gear