If Lecturing Yordle (3 health) is on the battlefield and the opponent plays Hexray (dealing 3 damage), does the Yordle's controller have an opportunity to use Cleave (an action) to save it, or does the Yordle die before they can act?

Ruling: The Yordle dies before its controller can use Cleave to save it, because the chain must resolve fully before focus is passed back, and Cleave is an action that requires focus.

Sequence:

• Hexray is played, dealing 3 damage to the Yordle
• The chain resolves fully
• The Yordle dies from the damage
• Only after the chain resolves does focus pass back
• At this point it's too late to Cleave

Nuances:

• The attacker could Cleave preemptively if they have focus first, before the opponent plays Hexray
• If the Yordle's controller had used a reaction to buff the Yordle during the chain, it could survive and then Cleave could be used after