You may discard a [Cunning] card from your hand instead of paying this event's cost.
Exhaust a unit and return each upgrade on it to its owner's hand.

You may discard a card from your hand instead of paying this event's cost. 

Exhaust a unit and return each upgrade on it to its owner's hand.

Rules Clarifications:

• Each upgrade is returned to the upgrade’s owner’s hand.
• If you discard a card instead of paying this event’s cost, you ignore all costs, including all additional costs.