Lets take a quick look at what's up for grabs and consider what sets are worth pre-ordering before they sell out fast
Ash Barrens, Atog, Battle Screech, Chain Lightning, Chainer's Edict, Circular Logic, Cuombajj Witches, Death Spark, Dust to Dust, Gorilla Shaman, Holy Light, Hydroblast, Icatian Javelineers, Icequake, Night Soil, Oubliette, Pyroblast, Serrated Arrows, Songs of the Damned, Tangle, Thermokarst, Tinder Wall, and Urza's Mine, Urza's Power Plant, Urza's Tower
Ramp: Sakura-Tribe Elder, Rampant Growth, Farseek, Nature's Lore, Kodama's Reach, Explosive Vegetation, Skyshroud Claim, Tempt with Discovery, Urza's Incubator, Sword of Feast and Famine Card Advantage: Puresteel Paladin, Sram, Senior Edificer, Stone Haven Outfitter, Mask of Memory, Sword of Fire and Ice, Rishkar's Expertise, Hunter's Insight, Life's Legacy, Greater Good, Lifecrafter's Bestiary, Sylvan Library Protection: Heroic Intervention, Champion's Helm, Nim Deathmantle, Conqueror's Flail, Teferi's Protection, Indomitable Archangel, Leonin Abunas Disruption: Dispatch, Aura Shards, Scavenging Ooze, Swords to Plowshares, Dromoka's Command, Beast Within, Return to Dust, Wrath of God, Day of Judgment, Phyrexian Reclamation, Fumigate, Austere Command, Rest in Peace, Relic of Progenitus, Nature's Claim, Sylvan Reclamation Recursion: Sword of Light and Shadow, Nahiri, the Lithomancer, Buried Ruin
Both are excellent in the right archetype, though, and both make great Commanders
