Warrior's Oath [Portal Three Kingdoms] Phyrexian Dragon Skeleton If one or more counters

If one or more counters would be put on a permanent your team controls

Clockwork Avian enters the battlefield with four +1/+0 counters on it

Enchanted creature gets +0/+2

Set: Portal Type: Sorcery Rarity: Rare Cost: {G} Search your library for a creature card

That creature has indestructible for as long as it has a divinity counter on it

Warrior's Oath [Portal Three Kingdoms] Phyrexian Dragon Skeleton If one or more countersSet: Portal Three Kingdoms Type: Sorcery Rarity: Rare Cost: {R}{R} Take an extra turn after this one. At the beginning of that turn's end step, you lose the game. "If I fail, my head is yours." Warrior's oath common during the Three Kingdoms period