How does Convergent Mutation work when matching a unit's might to another unit (e.g., Mundo)? Does the might continue to track changes, persist after the source dies, and can you choose which unit to match?

Ruling: Convergent Mutation applies a one-time might increase on resolution to match the target unit's current might at that moment. The boosted unit does not continue tracking further changes to the source unit's might, and you can choose any friendly unit to match.

Sequence:

• Choose a friendly unit to boost and another friendly unit to match
• On resolution, the boosted unit gains might until it equals the chosen unit's current might
• The boosted unit maintains this new might value for the remainder of the turn
• At end of turn, the might bonus expires and returns to base value

Nuances:

• If the source unit (like Mundo) gains or loses might after Convergent Mutation resolves, the boosted unit does NOT track those changes
• If the source unit dies, the boosted unit keeps the might bonus until end of turn
• You can choose any friendly unit to match, not necessarily the closest in might value