Jegantha, the Wellspring + Horde of Notions + Concordant Crossroads + Bloodflow Connoisseur

Jegantha, the Wellspring

Horde of Notions

Concordant Crossroads

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 clever recursion loop turns Jegantha, the Wellspring into an endless fuel source, since its restriction against paying generic mana costs is neatly bypassed by Horde of Notions casting it directly from the graveyard for a flat five-color requirement. Concordant Crossroads ensures that Jegantha can tap for its exact color-coded mana the very moment it re-enters the battlefield, eliminating any summoning sickness delays. Meanwhile, Bloodflow Connoisseur acts as the necessary executioner, devouring Jegantha to trigger the loop while growing larger with infinite +1/+1 counters for every iteration.