Pay 3 Force Reveal a Mission card with a build cost of 3 or more from your hand. That Mission costs 1 less build counter to complete this turn. Play only during your build step and only once per turn.
Keywords
Stealth
Stealth: An isolated, static ability that means, "This unit can't be attacked unless it's tapped or has damage counters on it." An untapped and undamaged unit with Stealth can still be affected by alternative types of damage. (Such as Overkill.) As long as the unit has any number of damage counters on it, it can't use Stealth.