Ella, Artificer of Truth

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Ascend (If you control ten or more permanents, you get the city’s blessing for the rest of the game.)
When Ella, Artificer of Truth attacks, if you have the City's Blessing, create a 3/3 Green Stuffed Cat creature token tapped and attacking. Exile it at the end of combat