Can you conquer/score a battlefield more than once in a turn, and can you conquer on an opponent's turn (including as a defender)?

Ruling: You can only score a battlefield once per turn, regardless of whether it's through Hold or Conquer. You can conquer on anybody's turn (including your opponent's turn and as a defender), as long as you haven't already scored that location that turn.

Sequence:

• If you conquer a battlefield and trigger abilities (like Qiyana's draw), you have scored that battlefield for the turn
• If you then move another unit to that same battlefield (e.g., via Charm), you cannot score/conquer it again that turn even if you win combat
• Your opponent could score that battlefield on your turn if they win the combat, since they haven't scored it yet

Nuances:

• You can score as a defender when moved into a battlefield on an opponent's turn
• You can end the game with a double conquer during your opponent's turn
• Conquering requires gaining control of a battlefield you did not previously control