Commander precon that released on March 6 has stayed affordable so far because so much of the products value is tied up in new cards like Mona Lisa, Ever Adaptable and other crazy reprints like City of Brass
You can also burn your opponent out when you draw cards thanks to threats like Psychosis Crawler, Queza, Augur of Agonies, and Niv-Mizzet, Parun
Gholdengo This stage 1 evolution from Gimmighoul is one of the better non-ex cards from Shining Revelry that should be considered for any Steel deck
9 Lightning Energy: Evolving Skies (Secret Rare, 235) $11.30 With how popular the expansion Evolving Skies is for its many chase alternate art masterpieces, this majestic Energy card slips through many collectors' sights
Opt you cast at your leisure and at the low cost of one mana it should barely ever be detrimental or even noticeable on your curve which is much more so the case with the slightly more potent sorcery alternatives that get in the way of things more