Some of the best include Valakut Exploration , Chandra, Torch of Defiance , Light Up the Stage , and Commune with Lava

Monored haste EDH Creature (44) 1x Akroma, Angel of Fury 1x Archetype of Aggression 1x Balefire Dragon 1x Ball Lightning 1x Bogardan Hellkite 1x Cathodion 1x Conquering Manticore 1x Diaochan, Artful Beauty 1x Dong Zhou, the Tyrant 1x Dragonmaster Outcast 1x Dragonspeaker Shaman 1x Ember Swallower 1x Flame-Wreathed Phoenix 1x Fumiko the Lowblood 1x Furyborn Hellkite 1x Goblin Welder 1x Godo, Bandit Warlord 1x Grim Lavamancer 1x Hellkite Charger 1x Hellkite Tyrant 1x Hellrider 1x Hero of Oxid Ridge 1x Incandescent Soulstoke 1x Inferno Titan 1x Kargan Dragonlord 1x Knollspine Dragon 1x Legion Loyalist 1x Malignus 1x Moonveil Dragon 1x Nova Chaser 1x Obsidian Fireheart 1x Purphoros, God of the Forge 1x Pyrewild Shaman 1x Ryusei, the Falling Star 1x Scourge of Valkas 1x Solemn Simulacrum 1x Stigma Lasher 1x Stormbreath Dragon 1x Thunderblust 1x Thundermaw Hellkite 1x Utvara Hellkite 1x Warren Instigator 1x Zealous Conscripts 1x Zirilan of the Claw Planeswalker (1) Land (34) Enchantment (3) Artifact (12) 1x Basilisk Collar 1x Batterskull 1x Gauntlet of Power 1x Journeyer's Kite 1x Loxodon Warhammer 1x Quicksilver Amulet 1x Slate of Ancestry 1x Sol Ring 1x Staff of Nin 1x Strata Scythe 1x Sword of Feast and Famine 1x Sword of War and Peace

It's an unparalleled cantrip effect that regenerates your options out of nowhere
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
A genius
Of course, even the more casual collectors keep an eye out for hot pulls