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The second thing that I think is worth mentioning are the lands themselves

It offers the player, for a low mana cost, 1GWB, the ability to look at the top card of their library at any time and cast aura and equipment spells from the library

This was one of those cards that a lot of decks were on the edge of playing, either because they couldn't quite get threshold reliably or they didn't want to splash one of the colors, inviting them to play a high-risk but high-reward game with their mana bases that both cost them games and won them games they had little right to win

Seriously, if you go through the precon decklist I see: Cabaretti Courtyard Escape Tunnel Evolving Wilds Fabled Passage Maestros Theater Mountain Valley Myriad Landscape Riveteers Overlook Rocky Tar Pit Terramorphic Expanse Most of these can't find dual lands (Mountain Valley and Rocky Tar Pit are the exception) which means you're just relying on basic lands

MagicCon has everything fans love about Magic

Instant Color tag templates(None) Contaminant Grafter Trample, toxic 1 Whenever one or more creatures you control deal combat damage to one or more players, proliferate