If an enemy attacks with Yasuo Remorseful into a battlefield with a Poro, and the defending player uses Ride the Wind to move Mindsplitter to that battlefield during combat, does Mindsplitter survive and does the defending player score a point?

Question

Accepted Answer

Ruling: Yasuo's attack trigger will target the Poro (the unit already on the battlefield). The defending player can then use Ride the Wind to move Mindsplitter to that battlefield during combat. Mindsplitter will survive by killing Yasuo, but the defending player does not score a point because their control of the battlefield never dropped.

Sequence:
- Yasuo attacks and gains the Attacker designation during Combat
- Yasuo's attack trigger goes on the chain, targeting the Poro
- Defending player gets priority and can use Ride the Wind to move Mindsplitter to the battlefield
- Combat resolves with Mindsplitter killing Yasuo

Nuances:
- Yasuo's ability does not trigger during Open Showdown, only during Combat when the unit gains the Attacker designation
- No point is scored because the defending player maintained control of the battlefield throughout