Jegantha, the Wellspring + Horde of Notions + Bloodflow Connoisseur + Tyvar, Jubilant Brawler

Jegantha, the Wellspring

Horde of Notions

Bloodflow Connoisseur

Tyvar, Jubilant Brawler

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 loop turns Jegantha, the Wellspring into a self-recycling engine, fueled entirely by its own restricted five-color mana production. Since Jegantha's mana cannot pay generic costs, it pays the exact WUBRG activation cost for Horde of Notions, which plucks Jegantha straight back out of the graveyard to cheat it onto the battlefield. Meanwhile, Bloodflow Connoisseur provides the necessary sacrifice outlet to send Jegantha back to the graveyard while growing larger with endless +1/+1 counters. Though not strictly necessary to execute the loop itself, Tyvar, Jubilant Brawler makes a fine supporting player by letting your creatures tap for abilities the turn they arrive and giving you alternative recursion options for your smaller pieces.