When you conquer a battlefield, do you immediately control it before resolving conquer effects (e.g., can a unit revealed by Rek'sai's conquer effect be played at the newly conquered battlefield)?

Ruling: Yes, you immediately control a battlefield when you conquer it, before conquer effects resolve. Units revealed by conquer effects can be played at the newly conquered battlefield.

Sequence:

• Conquer the battlefield
• Control is established
• Conquer effects happen