This effect could find a home in Blue and/or Red and provides an extra layer of decision-making compared to draw 2, then discard 2 and discard 2, then draw 2. Would this work within the rules of Magic
Then pay two generic mana and tap it to cast a copy of Dramatic Reversal (gaining three life), untapping all your permanents, not including lands, and the Isochron Scepter
Its death by a thousand cuts, but those cuts add up really fast when you produce tokens from Reverent Hoplite, Evangel of Heliod, and similar effects while doubling down on those triggers with Delney and doubling those tokens with cards like Anointed Procession
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This can be done by flashing in these win conditions on your opponent's end step with the help of cards like Another option is to stack additional upkeep triggers on your turn, though the most glaring downside to this strategy is you pretty much need to be playing blue, unlike the previous approach