I'm impressed - I hate to be a critic, but this idea REALLY outshines your archived concept smuglapse by miles. The theme alone is much more original and specific compared to the previous Erosion idea; the mechanic is just icing on how you worded it.
I think the fun thing is how one could theoretically have a bunch of these type of "Erosions" on the field, generate a bunch of Waves, and have a party with
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generation and drawing more cards to speed up your deck (or to help prevent deck-out, as your original intention).