In a Showdown with Master Yi, when two units die simultaneously from combat damage, does one unit get Yi's +2 bonus when the other dies during damage calculation?

Ruling: No, neither unit gets the bonus. Combat damage is dealt simultaneously, so there is no time frame for a unit to have been alone during the damage calculation.

Nuances:

• If a unit ended up alone before combat damage was dealt, it would receive the +2 bonus
• Yi's ability applies during the entire process of combat, including damage assignment, but simultaneous death means no unit becomes alone during damage calculation