EarthquakeEarthquake (40,189 Inclusions, 2% of 2,337,008 Decks) The original red boardwipe, EarthquakeEarthquake still holds up these days precisely because of commanders like Niv-Mizzet, VisionaryNiv-Mizzet, Visionary that want to be able to damage players
Non-foil source material cards are available in Play Boosters and Collector Boosters
An extreme form of copying original cards is forgery of expensive cards, which is again outside the "proxy" category
Theres nothing saying you have to stop after three wins
2 3vs3 Dugtrio Team Battle Extra Rule In Japan, some Pokemon cards have been exclusive to vending machines, such as the Extra Rule cards
Having a reward for taking out other players permanents makes players a little more aggressive with their removal, which can help prevent any single players board state from getting out of hand