Liliana of the Veil, Nissa, Vital Force, and Chandra, Torch of Defiance are all planeswalkers that I've played in midrange builds that ended up allowing me to steal games from UW Control
Others, like [mtg_card]Culling Drone[/mtg_card], seem like they may get outclassed quicklyremember, you have to actually hit with the creature to ingest the card
When Leyline Binding enters the battlefield, exile target nonland permanent an opponent controls until Leyline Binding leaves the battlefield.
This stripped-down, 20-card deck version of the game is a masterclass in gacha (gambling) game design, feeding you handfuls of each currency when you first begin playing, teaching you all the gameplay loops they allow, and thenright when its all becoming naturalcuts you off, hard