Seems like this would get smoked by a land burn deck. You mana curve is so high that the only thing you could possible get out is Inkwell Leviathan... Actually with some control spells on top of that you'd be cut off at the knees.
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Conceptually, Psychic Vemon is fitting. That way not only do you lands cause damage to you opponent, but even their own lands cause harm.
You should use terramorphic expanse instead of crop rotation. It does the same thing except terramorphic expanse is a land card so it doesn't cost anything to put out.