The key card is present but its support is thin.
Prioritize useful support such as Mob Lookout or Spider Manifestation.
Cast Visionary for web-slinging after returning a tapped Manifestation. Visionary still triggers Lizards by mana value and supplies a land.
Your deck already enables the plan but is losing the early turns.
Take a castable early creature or efficient answer before a second expensive payoff.
Returning your mana creature reduces the mana you can use next turn until you replay it. Compare that loss with the web-slinging discount.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.