You may play lands and cast spells from the top of your library
some of the other new cards are also slam-dunks for an Equipment style deck like this, such as Professor Hojo, Cid, Freeflier Pilot, Barret, Avalanche Leader, basically anything that works with equipment is great
You still need to attack
Some are among the best at what they do (Graveborn Muse at Necropotence variants, Tradewind Rider at bounce, Bloodghast et al
Rosewater, Mark Subject: Crackle Off the top of my head though here are some cards that are "too powerful to bring back" that might be exciting to reprint in purple, along with what it would mean for the color's section of the pie: Mana Drain (countermagic) Fireblast (direct damage) Hymn to Tourach (discard) Rancor (trample and creature pump?) Land Tax (taxing) Land Grant (land search) Sylvan Library (deck manipulation) Dark Ritual (fast mana) The cards that really help to define the color, like the first three, seem better because their inclusion makes a lot of other cards make sense