Does reducing a unit's Might with Stupefy (causing existing damage to become lethal) count as killing with a spell?

Ruling: Reducing a unit's Might with Stupefy does not count as killing with a spell. When Stupefy reduces Might below the damage already marked on the unit, the game rules kill the unit due to damage equaling or exceeding Might, not the spell itself.

Sequence:

• A unit takes damage (e.g., 4 damage on a 5 Might unit)
• Stupefy reduces the unit's Might (e.g., from 5 to 4)
• The game rules see damage equals or exceeds Might and the unit dies
• This death is caused by game rules, not by the spell

Nuances:

• "To a minimum of 1" on Might-reducing effects only prevents the unit from being reduced to 0 Might through the effect itself
• Damage does not reduce a unit's Might; damage exists as a separate counter on the unit
• The spell that dealt the original damage would count as killing with a spell if it later becomes lethal through Might reduction