They cant all be running decks
The entire MTG Arena business model and economy is predicated on the wildcard system detailed in this article, so don't hold out hope for Wizards to implement trading or allow trading some day
Scouting Trek has great synergy with our Simic Elf Tribal and can lead to many Lands ETB (and Landfall triggers) and thus ramp us far ahead in mana production

Niv to Light 4 Bring to Light 4 Up the Beanstalk 4 Fable of the Mirror-Breaker 4 Leyline Binding 4 Fabled Passage 4 Sylvan Caryatid 3 Indatha Triome 3 Vanishing Verse 2 Blood Crypt 2 Niv-Mizzet Reborn 2 Molten Collapse 2 Pillage the Bog 2 Omnath, Locus of Creation 2 Abrupt Decay 2 Lightning Helix 2 Ketria Triome 2 Jetmir's Garden 1 Mountain 1 Plains 1 Ziatora's Proving Ground 1 Valki, God of Lies 1 Temple Garden 1 Forest 1 Raffine's Tower 1 Swamp 1 Island 1 Niv-Mizzet, Supreme 1 Deafening Clarion 1 Spara's Headquarters 1 Steam Vents 1 Drowned Catacomb 1 Sunpetal Grove 1 Godless Shrine 1 Hallowed Fountain 1 Savai Triome 1 Raugrin Triome 1 Mana Confluence 1 Watery Grave 1 Glacial Fortress 1 Sunfall 1 Unmoored Ego 1 Woodland Cemetery 1 Kolaghan's Command 1 Stomping Ground 1 Yasharn, Implacable Earth 1 Breeding Pool 1 Beza, the Bounding Spring 1 Krenko's Buzzcrusher 1 Roxanne, Starfall Savant 3 Fatal Push 3 Dovin's Veto 2 Ashiok, Dream Render 2 Lightning Helix 1 Yorion, Sky Nomad 1 Kambal, Consul of Allocation 1 Culling Ritual 1 Notion Thief 1 Deafening Clarion Niv to Light is a five-color midrange deck that uses a collection of multicolor cards from across the color pairs to maximize Niv-Mizzet Reborn and Niv-Mizzet, Supreme

I know this might seem like a weird idea, but hear me out