Improvised Arsenal + Mana Echoes + Stonework Packbeast + Barret, Avalanche Leader

Improvised Arsenal

Mana Echoes

Stonework Packbeast

Barret, Avalanche Leader

How it works

1. Activate Improvised Arsenal by paying 4, creating a token copy of it.
2. Barret triggers, creating a creature token.
3. When the creature token enters, Mana Echoes triggers, adding C for each creature you control that shares a creature type with the creature token.
4. If needed, activate Stonework Packbeast by paying 2, adding .
5. Repeat.

This engine relies on Barret, Avalanche Leader to turn the token-copy activation of Improvised Arsenal into a steady stream of Rebel creature tokens every time a new copy enters the battlefield. As those Rebels flood the board, Mana Echoes exploits their shared creature types to generate an escalating avalanche of colorless mana with each new arrival, backed up by Stonework Packbeast's ability to fix mana if you ever need that extra push. Because Improvised Arsenal's equipment copies keep stacking up, every creature you control grows larger thanks to the equipment's static buff, creating an unstoppable loop of infinite artifact and creature entries that translates into overwhelming power across your entire board.