If I have a Lonely Poro at a Battlefield and another at Base with a Zhonya's Hourglass, and my opponent plays Falling Star targeting the Battlefield Poro first then the Base Poro, will I draw from the Base Poro's Deathknell when it dies?

Ruling: Yes, you will draw a card from one of the Lonely Poros. Falling Star deals all its damage before checking for lethal, so both Poros are marked to die simultaneously. Zhonya's Hourglass can save one Poro (preventing its Deathknell), but the other Poro still dies and triggers its Deathknell to draw a card.

Sequence:

• Falling Star resolves completely, dealing 3 damage to the Battlefield Poro and 3 damage to the Base Poro
• The game checks for lethal damage on both Poros simultaneously
• Both Poros have taken lethal damage and are marked to be killed at the same time
• Zhonya's Hourglass can save ONE of the Poros as a replacement effect (it is healed, exhausted, recalled, and its Deathknell does not trigger)
• The other Poro dies and its Deathknell triggers, drawing you 1 card (if it was "alone" at its location)

Nuances:

• Falling Star received an errata so both damage instances resolve as part of a single spell resolution, not as separate triggers
• The "alone" condition for Lonely Poro checks if there were other friendly units at its location when it died
• Zhonya's Hourglass is a replacement effect that prevents the unit from dying, so a saved unit never triggers Deathknell