Even though Queen Brahne is likely to die in combat, it should be able to trade off with something in the process and leave you up one Wizard token, which is a pretty good deal
With the Tithe being significantly easier to acquire thanks to Enchanting Tales, Boros, and Orzhov may have gained wider access to easily achievable alternative win conditions
You may mill three cards
After the spell leaves the stack, it will go to the battlefield, the graveyard, exile, or wherever it's supposed to go depending on what type of spell it is
The newest iteration, Ugin, Eye of the Storms, is no exception
The looting effect scales with board size and pairs especially well with the best blue cards in MTG that enhance draw and filtering without slowing aggression