Jegantha, the Wellspring + Horde of Notions + Hammer of Purphoros + Bloodflow Connoisseur

Jegantha, the Wellspring

Horde of Notions

Hammer of Purphoros

Bloodflow Connoisseur

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 loop relies on Jegantha, the Wellspring generating the exact five-color mana required to fuel Horde of Notions, letting you continually pull Jegantha straight back from the graveyard without paying its mana cost. Because Bloodflow Connoisseur is there to instantly sacrifice Jegantha the moment it returns, you can feed this cycle endlessly to generate infinite sacrifice and death triggers while growing the Connoisseur with infinite +1/+1 counters. Though Hammer of Purphoros is part of the package, the engine itself runs entirely on the recursive synergy between the Elemental avatar and your mana-producing companion.