That is highly unusual and, having watched a few box opening videos on Youtube, I didnt recall seeing this (though I wasnt paying much attention to the commons)
While most group hug decks are also fattening up everyone's land count so that they can feed a Helix PinnacleHelix Pinnacle, give the entire table a horde of Hippos with PhelddagrifPhelddagrif and a Suture PriestSuture Priest, or just cast Approach of the Second SunApproach of the Second Sun twice in the same turn, another huge piece of the strategy is what Howling MineHowling Mine provides: having a huge grip of cheap, efficient interaction that you can use to keep others from winning while you get your splashy win-con online
Next up on the list is Disablaster the Negation Fortress
(7/13/2018) Because the permanent is on the battlefield both before and after it's turned face up, turning a permanent face up doesn't cause any enters-the-battlefield abilities to trigger
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And in their dreams, its a 4/1