You have the payoff but too few ways to activate it.
Look for Zoyowa Lava-Tongue.
Trade Freebooter in combat to descend, leaving Treasure while Zoyowa pressures the opponent at your end step.
Your synergy is already working but you keep falling behind.
Take an early play or answer before another expensive reward.
Sacrificing a Treasure token alone does not make you descend. Avoid holding back useful attacks merely to keep every creature alive.
The support is missing
Favor castable creatures and interaction if narrow support does not arrive.