When a creature becomes stunned, place a stun status card on it. While a creature is stunned, it cannot fight, reap, or use action or omni abilities.
Any time a stunned creature could normally be used, it can instead be used by exhausting it to remove its stun status card.
If a card effect would cause a stunned creature to fight, reap, or use an action or omni ability, instead that creature is exhausted and the stun status card is removed. This is considered "using" that creature.
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 have another stun status card placed on it. If an effect attempts to stun a stunned creature that effect does not stun the already stunned creature.