This greatly increases its opportunity to see play in Standard
Sure, a bunch of 0/1s arent going to win the game on their own, but it doesnt take much to spin them into a host of infinite combos, fodder for Blood Artist and Zulaport Cutthroat, or an instant army with Coat of Arms
In particular, you can truly see how many different ways a game can go with some ending quite quickly and others getting dragged out for various reasons
Emberheart Challenger Move over Feldon, Ronom Excavator, theres a new hasty red 2-drop in town, and its the valiant Emberheart Challenger
Meanwhile, the ability to force someone to lose two life or a creature every single upkeep is the sort of slow, powerful, hard to answer threat that flourishes at the kitchen table