This clever loop relies on Tortured Existence to continuously cycle creature cards between your hand and graveyard for just a single black mana each time. Whenever a creature card leaves your graveyard, Insidious Roots triggers to hatch a 0/1 Plant token while also growing all your Plants with +1/+1 counters. You can then tap that newly minted Plant token for mana thanks to the static ability granted by Insidious Roots itself, fueling the next iteration of the cycle. Meanwhile, Tannuk, Steadfast Second stands ready to give your team haste if needed, while its warp ability provides an alternate way to deploy artifacts and red creatures from your hand.