The mana in the new set is not great, so new Standard decks will have to play many basic lands
Metalwork Colossus Last, but not least, we have Hyan's Metalwork Colossus
It can arrive at a moment's notice to tap down your opponent's board, preventing an attack or preventing your opponent from defending
One particularly damning thing to note is this chart: This table shows that with 7 Swamp and 7 Plains, you will have the required Plains to cast a turn-3 Territorial Hammerskull only 85.9% of the time (on the play, in absence of mulligans or card selection)
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In addition, several other effects combined with the Library to make it truly ridiculous