When conquering a battlefield, if both a unit ability and the battlefield's ability trigger on conquest, which resolves first?

Question

Accepted Answer

Ruling: When multiple abilities trigger on the same event (conquering), you get to select the order in which they resolve.

Sequence:
- Conquer the battlefield
- Both abilities trigger simultaneously
- You choose which ability to resolve first
- Resolve the second ability

Nuances:
- In the Rek'Sai and Hall of Legends example, you can choose to pay to ready Rek'Sai first (using Hall of Legends), then use her ability, or vice versa.