It's different from a Stax deck, which taxes opponents for doing anything, in that they tend to still allow players to impact anybody but you
Casting non-creature spells with a cost of three or more while Yshtola is in play causes each of your opponents to lose two life while you gain two in return
While it makes sense that you would expect rare cards to not be accessed so easily, uncommons are much easier to come across

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Hasbro, parent company of Wizards of the Coast (WotC), released its First Quarter 2025 Financial Report that shows the companys first quarter revenue increased 17 percent behind Magic: The Gathering