The key card is present but its support is thin.
Prioritize useful support such as Gene Pollinator or Galactic Wayfarer.
Tap a spare Lander with Gene Pollinator for colored mana without sacrificing it. Activate that Lander later when the permanent land is worth the two-mana payment.
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 fill the deck with expensive payoffs and temporary warp bodies. A warped Whale normally cannot block the opponent’s next turn.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.