Thieves' Auction [The List] Magic 2014 Magecraft — Whenever you cast

Magecraft — Whenever you cast or copy an instant or sorcery spell

Set: The List Type: Sorcery Rarity: Rare Cost: {2}{W}{W} Destroy all creatures

Set: Mystery Booster Type: Artifact Rarity: Rare Cost: {5} Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it

Xenagos isn't a creature

that player can't cast spells or activate abilities and plays with their hand revealed

Thieves' Auction [The List] Magic 2014 Magecraft — Whenever you castSet: The List Type: Sorcery Rarity: Rare Cost: {4}{R}{R}{R} Exile all nontoken permanents. Starting with you, each player chooses one of the exiled cards and puts it onto the battlefield tapped under their control. Repeat this process until all cards exiled this way have been chosen.