The key card is present but its support is thin.
Prioritize useful support such as Buzz Bots or Crustacean Commando.
Return an unblocked Buzz Bots with Oroku Saki, then cast Foot Mystic after combat; the returned permanent already enabled disappear.
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 Buzz Bots is not dying, so it does not draw on that return. Its death trigger matters only if it actually dies.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.