Despite prices settling down due to the more recent release of Magic Foundations , Overlord of the Balemurk remains a desirable hit (especially the Japan Showcase printing) because it plays so well within strategies that want to fill the graveyard and then recur a massive threat onto the battlefield
A couple of standouts are Teferi, Master of Time who will quickly become BFFs with Sefris given a chance, and Enduring Renewal, which we can play out once we have a creature or two in play and ensure we draw straight through to our lands/noncreature interaction every turn thereafter
Faerie Guidemother Faerie Guidemother seems unassuming at first glance, but it might be good if you want a very aggressive and low-curve deck
Its a flexible beater at all points of the curve, and a creature with vigilance, haste, and trample threatens your opponents life total while protecting yours
Mana Crypt taps for 2, and Mana Vault, Thran Dynamo, Basalt Monolith, and Grim Monolith can tap for three easily enough and make even more mana than 5
TCGplayer TCGplayer is a fantastic place to grab singles