I did a card spotlight on her detailing this so will skip that explanation here
If the number was higher than 165, that would indicate a secret rare card
This absolutely hoses commanders, as it doesnt let your opponents return them to the command zone like other removal, because this isnt making it change zone
There are six varieties of this card, each one with four modes to pick two from, giving you 24 possible options to pick from across all the versions
Number Only : 011 (Common in promotional cards or Japanese sets)
Depending on the creature type you pick you might have a few lingering creatures on the battlefield, popular creature types like Elves and Humans will likely see a few hanging around, but the spell should be more than enough to empty the board