Firstly, it gives your deck access to blue, which means countermagic, Rhystic Study, and Thassa's Oracle
With more card draw, you can control games with cards like Organic Extinction, play huge spells like Wake the Past, and get your big creatures and planeswalkers like Brudiclad, Telchor Engineer and Ugin, Eye of the Storms more reliably
Cobra checks all three boxes
Notable Exclusions: Bloom Tender, Devoted Druid - Some of the best mana dorks in history, but at 2cmc they're not what we're looking for
Assuming you can afford to pay eight mana and unlock both Rooms right off the hop, every enchantment cast produces +1/+1 counters equal to its mana cost, and every permanent you cast immediately becomes an enchantment
Source The Guildmasters Guide to Ravnica sourcebook lets you explore one of Magics most popular and iconic planes in your next D&D adventure