Derevi, Empyrial Tactician [Commander 2013] Two-Headed Giant Tournament At the beginning of each

At the beginning of each opponent's upkeep

Within the walls of the floating city

Set: Legends Type: World Enchantment Rarity: Rare Cost: {3}{B} Whenever a player casts a spell

Summoned from the dreamrealms

Set: Ice Age Type: Sorcery Rarity: Rare Cost: {4}{R}{R} Destroy all artifacts

Derevi, Empyrial Tactician [Commander 2013] Two-Headed Giant Tournament At the beginning of eachSet: Commander 2013 Type: Legendary Creature Bird Wizard Rarity: Mythic Cost: {G}{W}{U} Flying Whenever Derevi, Empyrial Tactician enters the battlefield or a creature you control deals combat damage to a player, you may tap or untap target permanent. {1}{G}{W}{U}: Put Derevi onto the battlefield from the command zone.