Stax's strategy creates, yes, frustration with its obligatory taxes, but they are far from paralyzing the game completely and making it unplayable, with all of them able to be easily answered and destroyed, in case their costs are duly paid or countered
All of these cards see play in some capacity across different formats, and there are some big value hits with Sword of Truth and Justice (~$30) and Umezawa's Jitte (~$10)
These special events may not contribute the most to building up cards for players
These are great as a simple intro to playing the game
Or, you can point it at your own fodder and turn every token into a card
Rose gets bigger and bigger the more time counters she has, and she gets more when there are cards with Suspend in exile or permanents with Vanishing on the battlefield