When Charm moves an opponent's unit to a battlefield that becomes empty (due to Gust removing the controller's unit first), does the moved unit conquer the battlefield and score a point?

Ruling: When Charm resolves and moves a unit to an empty battlefield (after Gust removed the controlling unit), the moved unit conquers the battlefield and gains a point.

Sequence:

• Gust resolves, returning the unit to hand
• The battlefield loses control and any hidden cards are lost
• Charm resolves, moving the opponent's unit to the now-empty battlefield
• The opponent conquers the battlefield and scores a point

Nuances:

• If a player re-enters a battlefield they already scored from this turn, they gain control but do not conquer again or score additional points
• Conquer is a consequence of scoring, so it only happens when a point is actually awarded