Do stuns last the entire turn or only for the showdown where the unit was stunned?

Ruling: Stuns last for the entire turn, not just the showdown where the unit was stunned.

Sequence:

• A unit gets stunned during a showdown
• If the stunned unit doesn't die, attackers return to the base
• If you attack again in the same turn with different characters, the stunned unit still won't deal any damage

Nuances:

• The stun persists across multiple showdowns within the same turn