Lifeline [Urza's Saga] Rivals of Ixalan if Clockwork Avian attacked or

if Clockwork Avian attacked or blocked this combat

"Life can never be *too* good

Set: San Diego Comic-Con 2016 Type: Legendary Planeswalker — Chandra Rarity: Mythic Cost: {4}{R}{R} +1: Create two 3/1 red Elemental creature tokens with haste

Each creature in a pile that can block the creature that pile is assigned to does so

Lifeline [Urza's Saga] Rivals of Ixalan if Clockwork Avian attacked orSet: Urza's Saga Type: Artifact Rarity: Rare Cost: {5} Whenever a creature dies, if another creature is on the battlefield, return the first card to the battlefield under its owner's control at the beginning of the next end step.