Jegantha, the Wellspring + Horde of Notions + Bloodflow Connoisseur + Dynaheir, Invoker Adept

Jegantha, the Wellspring

Horde of Notions

Bloodflow Connoisseur

Dynaheir, Invoker Adept

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Bloodflow Connoisseur 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 ingenious engine turns Jegantha, the Wellspring into an endlessly recurring sacrifice loop, fueled entirely by its own five-color mana production. By tapping Jegantha to generate {W}{U}{B}{R}{G}, you can immediately feed Jegantha to Bloodflow Connoisseur to grow the Connoisseur and send the Elk Elemental back to the graveyard. From there, Horde of Notions steps in to spend that exact five-color mana cost to pull Jegantha straight back onto the battlefield from the graveyard without paying its mana cost, resetting the loop. Though Dynaheir, Invoker Adept isn't strictly necessary for the core loop to function, her presence and haste-granting prowess fit right into a deck built around leveraging powerful creature activations.