The key card is present but its support is thin.
Prioritize useful support such as Wreckage Wickerfolk or Nimble Thopterist.
Cast Pactdoll Terror before Nimble Thopterist when the board allows; the Thopter supplies another artifact entry, and later Haunt the Network counts its own two new artifacts for the drain.
Your deck enables the plan but is losing the early turns.
Take a castable early creature or efficient answer before another expensive payoff.
Haunt the Network counts artifacts on resolution, while Pactdoll triggers for entries. Do not sacrifice your entire artifact board before a drain spell that needs those artifacts.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.