This means that every single creature in your deck works with Prosperous Thief, Ingenious Infiltrator, Yuriko, the Tiger's Shadow, and Kaito, Bane of Nightmares, which is a pretty significant power-boost to the non-ninja creatures in your deck
If you manage to blink the main creature, it gets silly
Divebomb Action This card is actually pretty cool and goes well with Ruby given powerful characters with the Reckless keyword (especially Maui Hero to All)
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.
The Emerald Ink type Ursula, Deceiver of All is a Dreamborn card (you can check out our Storyborn, Dreamborn and Floodborn Disney Lorcana guide for more details)
If your opponent only has a few characters in play, this is an excellent way to thin things out