The key card is present but its support is thin.
Prioritize useful support such as Starfighter Pilot or Frontline War-Rager.
Station with Starfighter Pilot and another creature. Pilot surveils, while keeping two creatures tapped through the end step enables Sami and War-Rager.
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.
Sami requires two tapped creatures, not tapped lands or noncreature Spacecraft. Stationing can leave too few blockers for the return attack.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.