Does a stunned attacking unit contribute its Might to the total combat damage dealt?

Ruling: No. A stunned unit does not contribute its Might to damage in the combat damage step. Only non-stunned attacking units contribute their Might to the total combat damage dealt.

Nuances:

• While a stunned unit must still receive damage equal to or greater than its full Might value to be killed, it does not deal its Might as damage to the opponent.
• In the example scenario with a stunned 7 Might unit and a non-stunned 4 Might unit attacking, only 4 total damage would be dealt to the defending battlefield.