Think of it like more of a static, ursine Bane of Progress
Lifelink gains you more life, prowess gives you double the power pump, trample deals more damage to the defending player, and so on
This synergy of relentless offense and well-timed control makes the deck not only competitive but also incredibly fun to play, just like some of the best Yu-Gi-Oh decks out there
You do have to hit an opponent to get the trigger, but flying enables this to a great extent and the reward of flickering as many things as you want makes the juice worth the squeeze
This means that play groups typically use the unwritten Rule 0, to discuss which cards mean fun
The strategy is to play cheap, evasive creatures on turn one, use them to get Yuriko into play on turn two, and then use cards like Brainstorm or Senseis Divining Top to manipulate the top of your library, ensuring you reveal a high-cost card like Draco (16 mana) or Blinkmoth Infusion (14 mana) to deal massive damage to the entire table at once.