The key card is present but its support is thin.
Prioritize useful support such as Illvoi Operative or Mental Modulation.
With a second-spell payoff present, cast Mental Modulation to tap a blocker and draw, then deploy another cheap spell before combat.
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.
Do not hold every early spell for a future trigger. A board that cannot block loses the time needed to use second-spell rewards.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.