You have the payoff but too few ways to activate it.
Look for Dig Site Inventory.
Flash back Inventory to put a counter on a creature and prepare Kirol as the card leaves your graveyard. Pack a Punch supplies another attack upgrade.
Your synergy is already working but you keep falling behind.
Take an early play or answer before another expensive reward.
Flashback still follows the spell’s timing. Group Project can tap newly entered creatures as its flashback cost, but leaves them unavailable to block.
The support is missing
Favor castable creatures and interaction if narrow support does not arrive.