The key card is present but its support is thin.
Prioritize useful support such as Zoo Escapees or Ice Cream Kitty.
Pizza Face supplies Food. On a later turn, Kitty can sacrifice that token to draw and enable Pizza Face’s end-step counters.
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 wait until after the end step begins to create the first departure of the turn; the disappear trigger may already have been missed.
The support is missing
Favor independently useful creatures and interaction if the narrow support does not arrive.