For two blue mana and one white, plus whatever you load up the X cost with, you get to gain that much life and draw that many cards
While there are certainly some misses here, overall this is a fantastic set of promos
Players can't take actions in between the time you destroy the target creature and the time it returns to the battlefield under your control
However, despite the small set size, there are plenty of cards that are very valuable and will cost a pretty penny if you want to obtain the fanciest versions available for the cards
Only family members, the artist, and Magic employee Dave Howell had cards (albeit Hoover's was stolen at some point)
You still want to draw lands after your opening hand to curve out and firing Once Upon a Time on Turn 3 to find one is not a good use of mana