Nice deck!
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I would move "Aerie Ouphes" and "Midnight banshee" to the sideboard. You can add 2 "Skithiryx, the Blight Dragon".I prefer "Phyrexian Crusader" than "Rendclaw Trow". Try to change "Kitchen Finks" by "Noxious Hatchling" and "Flesh-Eater Imp". They have a good combo with Melira.
Phyrexian Hydra + Melira maybe?
Nice deck.