If Taric and Green Ahri are at a battlefield and the opponent attacks with Kog'Maw, do the units survive due to Taric's shield, or does Taric dying cause them to die?

Ruling: All units die. Kog'Maw's deathknell triggers after combat damage is healed, dealing 4 damage to everyone, and then all units lose their shields at combat end.

Sequence:

• 1 damage dealt to Taric and Kog'Maw during combat
• Kog'Maw dies
• Taric heals
• Kog'Maw's deathknell triggers, dealing 4 damage to everyone
• Combat ends and all units lose their shields and die