Jegantha, the Wellspring + Horde of Notions + Dragonlord Kolaghan + Yahenni, Undying Partisan

Jegantha, the Wellspring

Horde of Notions

Dragonlord Kolaghan

Yahenni, Undying Partisan

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Yahenni by sacrificing Jegantha.
3. Activate Horde of Notions by paying , causing you to cast Jegantha from your graveyard without paying its mana cost.
4. Repeat.

This vibrant loop transforms Jegantha, the Wellspring into a self-sustaining engine by tapping the companion to yield the exact five-color mana restriction required to feed Horde of Notions. Because Horde of Notions allows you to bypass mana costs when casting Elementals from the graveyard, it effortlessly pulls Jegantha right back onto the battlefield after Yahenni, Undying Partisan sacrifices it. Yahenni not only provides the necessary sacrifice outlet but also grows larger with every iteration, while Dragonlord Kolaghan sits proudly in the deck to support this synergy within your color identity.