Tetravus [Antiquities] Commander 2016 More than one mage was

More than one mage was driven insane by the sound of the Millstone relentlessly grinding away

You may repeat this process any number of times

destroy all untapped creatures that didn't attack this turn

Set: The Dark Type: Creature — Human Wizard Rarity: Rare Cost: {1}{U}{U} {U}

Tetravus [Antiquities] Commander 2016 More than one mage wasSet: Antiquities Type: Artifact Creature Construct Rarity: Rare Cost: {6} Flying Tetravus enters the battlefield with three +1 +1 counters on it. At the beginning of your upkeep, you may remove any number of +1 +1 counters from Tetravus. If you do, create that many 1 1 colorless Tetravite artifact creature tokens. They each have flying and "This creature can't be enchanted." At the beginning of your upkeep, you may exile any number of tokens created