Otherwise ManaBox is straightforward and effective, and lets you bring deck building on the go

1 Mirko, Obsessive Theorist 1 Marvo, Deep Operative 1 Case of the Shifting Visage 1 Copy Catchers 1 Final-Word Phantom 1 Watcher of Hours 1 Charnel Serenade 1 Eye of Duskmantle 1 Foreboding Steamboat 1 Unshakable Tail 1 Counterpoint 1 Ransom Note (Surveil) 1 Amphin Mutineer 1 Dream Eater 1 Mission Briefing 1 Phyrexian Metamorph 1 Sphinx of the Second Sun 1 Vizier of Many Faces 1 Black Sun's Zenith 1 Dogged Detective 1 Doom Whisperer 1 Grave Titan 1 Massacre Wurm 1 Overseer of the Damned 1 Phyrexian Arena 1 Pile On 1 Reanimate 1 Rise of the Dark Realms 1 Toxic Deluge 1 Twilight Prophet 1 Baleful Strix 1 Connive // Concoct 1 Lazav, the Multifarious 1 Master of Death 1 Choked Estuary 1 Darkwater Catacombs 1 Drownyard Temple 1 Fetid Pools 1 Hostile Desert 1 River of Tears 1 Sunken Hollow 1 Brainstorm 1 Consider 1 Curate 1 Deep Analysis 1 Enhanced Surveillance 1 Ephara's Dispersal 1 Mulldrifter 1 Nightveil Sprite 1 Otherworldly Gaze 1 Thoughtbound Phantasm 1 Animate Dead 1 Necromancy 1 Price of Fame 1 Ravenous Chupacabra 1 Shriekmaw 1 Sinister Starfish 1 Syr Konrad, the Grim 1 Whispering Snitch 1 Dimir Spybug 1 Discovery // Dispersal 1 Disinformation Campaign 1 Notion Rain 1 Arcane Signet 1 Dimir Signet 1 Everflowing Chalice 1 Mind Stone 1 Sol Ring 1 Talisman of Dominance 1 Thought Vessel 1 Ash Barrens 1 Bojuka Bog 1 Command Tower 1 Dimir Aqueduct 1 Myriad Landscape 1 Mystic Sanctuary 1 Port of Karfell 1 Reliquary Tower 1 Rogue's Passage 1 Tainted Isle 1 Temple of the False God 1 Tocasia's Dig Site 9 Island 9 Swamp Revenant Recon Tokens 4 Copy // Zombie tokens 4 Salamander Warrior // Zombie tokens 1 City's Blessing (helper) // Zombie token 1 Vizier of Many Faces // Zombie token Copy // Zombie Salamander Warrior // Zombie City's Blessing (Helper) // Zombie Vizier of Many Faces // Zombie Deadly Disguise Kaust, Eyes of the Glade and Duskana, the Rage Mother are traditional foil cards

Cosmogrand Zenith is flexible and shines in both aggressive strategies and token builds, where it turns a modest board into something overwhelming in no time
I would expect to have to trade something off to give Madness to an entire tribe, but at 2/1 for one mana, I'm not sure I see the downside
Tendershoot Dryad consistently makes plenty
I like it when you can use a drawback to your advantage which is highly achievable with bounce lands, you can re-use your Teetering Peaks style lands or cycle off a Tranquil Thicket, you can turn on your Land Tax or abuse Cataclysm