Weirdly, Wizards didn't pick enemy or allied colors for this batch, but a mixture of both
I love seeing it applied with a strong mastery of reference
You may cast any number of spells from among the nonland cards exiled this way without paying their mana costs
I personally run a pillowfort deck thats built around the idea of most creatures making some relative sense as members of a fantasy court, and the Queen is among the best assassins in Magic
A couple days' worth of previews, with a powerful white stack interaction spell, and more
It goes infinite quite easily, usually in conjunction with Rosie Cotton of South Lane, Ivy Lane Denizen, or one of numerous other cards that can put +1/+1 counters on the oak when the Squirrel tokens enter the battlefield