You have the payoff but too few ways to activate it.
Look for Zoetic Glyph.
A Map left by Siren gives Glyph an inexpensive artifact to animate. Keep the artifact in play rather than spending it to explore.
Your synergy is already working but you keep falling behind.
Take an early play or answer before another expensive reward.
Craft is a late-game mana sink. Do not fill the deck with seven-mana craft plans and no early blockers.
The support is missing
Favor castable creatures and interaction if narrow support does not arrive.