Horde of Notions, Jegantha, the Wellspring, and Molten Echoes

Prerequisites

• Horde of Notions on the battlefield
• Jegantha, the Wellspring in the graveyard
• Molten Echoes on the battlefield
• available

Steps

1. Activate Horde of Notions by paying , casting Jegantha from your graveyard without paying its mana cost
2. When Jegantha enters the abttlefield, Molten Echoes triggers, creating a token copy of Jegantha with haste
3. Put the nontoken Jegantha into your graveyard due to the legend rule
4. Activate the token Jegantha by tapping it, adding that cannot be spent to pay generic mana costs
5. Activate Horde of Notions by paying , casting Jegantha from your graveyard without paying its mana cost
6. Put the token Jegantha into your graveyard due to the legend rule
7. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite storm count