Jegantha, the Wellspring + Horde of Notions + Umbral Collar Zealot + The Fire Crystal

Jegantha, the Wellspring

Horde of Notions

Umbral Collar Zealot

The Fire Crystal

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Umbral Collar Zealot 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 relies on Jegantha, the Wellspring to provide the exact colored mana needed for Horde of Notions's activation, bypassing the restriction that Jegantha's mana cannot pay generic costs. By tapping Jegantha for its colored mana and using Umbral Collar Zealot to sacrifice it, you bin the Elk Avatar so that Horde of Notions can immediately pull it back onto the battlefield for free. Meanwhile, The Fire Crystal quietly empowers your setup by granting your creatures haste so they can move into action right away, while also helping your red spells flow.