Prosper, Tome-Bound + Goldspan Dragon + Flameskull + Viscera Seer + Doubling Season

Prosper, Tome-Bound

Goldspan Dragon

Flameskull

Viscera Seer

Doubling Season

How it works

1. Activate Viscera Seer by sacrificing Flameskull.
2. When Flameskull dies, it triggers, exiling it and the top card of your library with the ability to cast one from exile this turn.
3. Resolve the Viscera Seer ability.
4. Cast Flameskull from exile by paying 1.
5. Prosper's second ability triggers, creating two Treasure tokens.
6. Activate the Treasures by tapping and sacrificing them, adding 2.
7. Repeat.

This loop turns Viscera Seer and Flameskull into a self-sustaining engine fueled by the synergy between Prosper, Tome-Bound and Goldspan Dragon. When Flameskull dies and triggers its Rejuvenation ability, Prosper helps fund its return while generating extra fodder, which Goldspan Dragon amplifies by supercharging the resulting Treasure tokens to double their mana output. To push the combination into excess, Doubling Season steps in to double every single Treasure token created along the way, turning a tidy loop into an overwhelming cascade of resources.