This Duskmourn Commander is one of the strongest cost reducers in the game, even if you're restricted to the first enchantment you draw in a turn, and is very flexible: Aminatou, Veil Piercer EDH decks can be built in lots of different ways
Turbulent lands are obviously a big pickup for Commander players, as they benefit the players going third and fourth in turn order, who can bring these in untapped from Turn 3 onwards (with everyone else having to wait for Turn 4)
After all, its not by chance that you see plenty of Lightning Bolts flying around
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Tarkir: Dragonstorm Commander TypeEnchantment Collector Number94 Rarityuncommon ArtistCamille Alquier Whenever a creature you control with flying enters, it gains haste until end of turn
If your opponents monster declares an attack, you can target 1 Spell in your GY and Set it to your field