Over $50 (Premium) Gaea's Cradle ($400+), Serra's Sanctum ($200+), Mishra's Workshop ($1,500+), The Tabernacle at Pendrell Vale ($2,000+), Imperial Seal ($50$80), Force of Will ($60$100), Lion's Eye Diamond ($150+), Mox Diamond ($300+), Chrome Mox ($50+), Survival of the Fittest ($100+), Intuition ($80+)

Mardu Discard (0.7% of the Winner's Metagame) 4 Hardened Academic 4 Iron-Shield Elf 4 Marauding Mako 4 Moonshadow 4 Cool but Rude 4 Blood Crypt 4 Godless Shrine 4 Inspiring Vantage 4 Starting Town 3 Bloodghast 3 Blazemire Verge 2 Casey Jones, Vigilante 2 Cecil, Dark Knight 2 Erode 2 Sacred Foundry 2 Practiced Offense 2 Carnage, Crimson Chaos 2 Requiting Hex 1 Concealed Courtyard 1 Mountain 1 Tersa Lightshatter 1 Get Lost 3 Duress 2 Doorkeeper Thrull 2 Strategic Betrayal 2 Voice of Victory 2 Magebane Lizard 1 Case of the Crimson Pulse 1 Sunset Saboteur 1 Get Lost 1 Dawn's Truce Mardu Discard uses Iron-Shield Elf and Hardened Academic to discard cards at will, transforming what would normally be a drawback into a source of powerful synergies
Early, it finds acceleration or interaction
I imagine the sliver and Eldrazi precons will go down as some of the most memorable Commander precons of all time, with the other two offering their fair share of fun new additions to the format
I briefly experimented with Birthing Pod in affinity but I created something unholy