If a unit dies during a showdown on the opponent's turn, causing temporary loss of control, and another unit is moved into that battlefield during the same showdown to win it, does the player score a point?

Ruling: No, you do not score a point if you move a unit back into the battlefield during the same showdown. Control is not checked during active showdowns, so you never lost and regained control - you maintained control throughout the showdown.

Sequence:

• Opponent attacks battlefield with Yasuo, killing your unit A
• Control is not lost because the battlefield is contested (showdown is active)
• If you move unit B into the battlefield during that same showdown and win, you don't score (no conquest occurred)
• If the showdown ends first, then you move a unit back in to beat Yasuo, you would conquer and score

Nuances:

• Control is only checked continuously outside of showdowns or when battlefields are not being contested
• During an active showdown, control status is frozen regardless of might changes