So you're not that likely to get flooded (at least, relative to other 29-land decks)
Some of these cards even feature alternate names for maximum flavor, like Dark Depths as "The Boy in the Iceberg." Each source material card lists the book and episode that the artwork comes from in the bottom-left corner of the card
Battle at the Helvault Waiting three full turn cycles to get full value out of your six-mana saga can be a brutally long time in multiplayer
If you reveal a non-Land card with Explore, you essentially end up with a one-mana 2/2 plus some card selection, which is a great deal

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Land destruction is one of MTGs most taboo strategies, and Ravages of War is capable of destroying all land cards at once