This intricate recycling loop lets you endlessly sacrifice and replay Jegantha, the Wellspring by feeding the five-color mana produced by its own tap ability directly into Horde of Notions' resurrection magic. Because Woe Strider allows you to effortlessly bin your legendary companion for a scry while feeding the graveyard, every single iteration costs no net mana thanks to Horde of Notions bypassing Jegantha's normal casting cost. Meanwhile, Tuktuk Rubblefort provides the crucial haste needed so that Jegantha can tap the very moment it re-enters the battlefield, turning an infinite sequence of sacrifices into a self-sustaining engine.