This clever loop centers around Tortured Existence and Garna, the Bloodflame constantly trading creature cards between your hand and graveyard for a steady stream of black mana. Insidious Roots acts as the essential engine room here, turning each graveyard departure into a steady supply of 0/1 Plant tokens that can be tapped for the exact mana needed to keep Tortured Existence running. As this cycle spins endlessly, Insidious Roots doesn't just fund the operation—it also steadily piles infinite +1/+1 counters onto your growing army of Plant tokens.