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And most importantly, it shoots out Slivers for two colorless mana each activation

After all, you get no built-in protection aside from your ultimate, and instead what you're mainly working with is a bit of card draw and ramp

Some folks have argued that its a little too much like Upheaval in that the caster gets to float mana and do additional things (especially since the lands enter the battlefield untapped), but that analogy breaks down because the opponents also get to float mana and have untapped lands

All in all, this seems like an extremely fun precon to pick up and play with

This opens up some fun avenues of play with cards like Crucible of Worlds and Ramunap Excavator bonus points if youre using cards like Evolving Wilds or Verdant Catacombs to repeatedly take advantage of Exploration to play lands right out of your deck