If a 0 Might unit attacks another 0 Might unit, or a unit is reduced to 0 damage, do the units die?

Ruling: 0 damage is not damage. Units do not die from 0 damage because lethal damage requires a non-zero amount of damage equal to or higher than their current Might.

Sequence:

• When a 0 Might unit attacks another 0 Might unit, neither unit takes damage
• The attacker returns to base as normal
• Both units stay alive

Nuances:

• Lethal damage specifically requires a non-zero amount of damage
• This applies to any situation where damage is reduced to 0, including spell damage reduced by damage reduction effects