This clever loop transforms Jegantha, the Wellspring into a self-sustaining engine by tapping it for the exact five-color mana requirement needed to activate Horde of Notions. That mana is poured directly into the Horde to resurrect Jegantha from the graveyard for free, while Bartolomé del Presidio acts as the sacrifice outlet that enables the continuous loop and grows stronger with +1/+1 counters along the way. Meanwhile, Tuktuk Rubblefort ensures that Jegantha gains haste immediately upon re-entering the battlefield, allowing it to be tapped for mana all over again without summoning sickness slowing you down.