Jegantha, the Wellspring + Horde of Notions + Dynaheir, Invoker Adept + Phantom Train

Jegantha, the Wellspring

Horde of Notions

Dynaheir, Invoker Adept

Phantom Train

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Phantom Train 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 brilliant loop relies on Jegantha, the Wellspring to self-fund its own recursion through Horde of Notions, utilizing its restrictive colored mana output to pay the elemental monarch's ability cost entirely. To keep the engine running seamlessly, Phantom Train acts as the necessary sacrifice outlet, sending Jegantha to the graveyard while growing larger with each iteration. Meanwhile, Dynaheir, Invoker Adept sits quietly on the board, granting haste to ensure your creatures and their abilities are ready to fire off immediately upon return.