Stun

When a creature becomes stunned, place a stun status card on it. The next time the creature is used, the only thing that happens is the creature exhausts and the stun card is removed. It does not reap or fight, and any “Reap:,” “Fight:,” or “Action:” abilities on the creature do not resolve. Constant abilities and abilities that do not require the creature to reap, fight, or be used are still active. If a stunned creature is attacked, it still deals damage to the attacking creature during the fight. While a creature is stunned, it cannot become stunned again.

If a creature is stunned it cannot be chosen to resolve an ability to stun.

Example:

• If Smaaash enters play and your opponent has one stunned creature in play. The stunned creature cannot be stunned again, Smaaash must be stunned as the only legal play. (Brad Andres)