Early creature interaction that buys time to play your bigger threats and then later game it allows you to protect those bigger threats
Exit Through the Grift Shop Felidar Sovereign Form of the Approach of the Second Sun Frenetic Sliver Gallifrey Stands Gideon of the Trials Halo Fountain Happily Ever After Hedron Alignment Helix Pinnacle Hellkite Tyrant Herald of Eternal Dawn Jace, Wielder of Mysteries Laboratory Maniac Laboratory Maniac Liliana's Contract Luck Bobblehead Mayael's Aria Maze's End Mechanized Production Mortal Combat Near-Death Experience Now I Know My ABC's Platinum Angel Platinum Angel Avatar Ramses, Assassin Lord Revel in Riches Shahrazad Shinryu, Transcendent Rival Simic Ascendancy Test of Endurance Thassa's Oracle The Book of Exalted Deeds The Cheese Stands Alone The Countdown Is at One Triskaidekaphile Twenty-Toed Toad Woodland Guidance Wowzer, the Aspirational (playtest)

If you can get your heavy-hitters like Mufasa, King of the Pride Lands and Simba, Returned King out fast enough, you can overwhelm your opponent with sheer size and win the game before they even have enough ink in their own well to deal with you
I've also seen a few mentions of Vivi Ornitier, but we'll have to see if it's fast enough to keep up with the current meta
Take a good look at how much of each color you need for each spell and choose your lands accordingly