If a unit takes damage during a combat showdown, then is moved back to base with Fight or Flight before combat resolves, is the damage cleared?

Ruling: No, the damage is not cleared. The damage remains on the unit even though it was moved back to base before combat resolved.

Nuances:

• A combat showdown begins when a player moves into a battlefield controlled by another player
• A combat showdown cannot turn into a non-combat showdown
• Showdowns happen when a battlefield is contested and the chain is empty