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At the time, it was called the Kupton K020

Well there are lots of reasons it's popular

Being able to play lands directly from your graveyard has empowered quite a few strategies in Magic, most notably Legacy Lands and Vintage Workshop, but you'll occasionally see it in Modern Golgari decks too

There are plenty of mana creatures to power it out on turn 2 and that start is easy to follow to a turn 4 or 5 kill

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