If Yasuo's attack trigger targets a unit, but Reaver's Battlefield moves that unit away before Yasuo's trigger resolves, does Yasuo still deal damage to that unit?

Ruling: If you remove the target unit with Reaver's Battlefield before Yasuo's ability resolves, Yasuo's ability does nothing.

Sequence:

• Attack and defend triggers go on the chain in focus order (active player, then non-active player)
• Yasuo's attack trigger goes on the chain first
• Reaver's Battlefield defend trigger goes on the chain second
• Reaver's Battlefield resolves first, potentially moving the targeted unit
• When Yasuo's trigger resolves, if the target is no longer "here" (at that battlefield), the ability does nothing

Nuances:

• The word "here" on Yasuo's card is key - it requires the target to still be at that battlefield when the ability resolves