Its one toughness is barely a drawback when threshold is activated, since you can pay three to drag him back to the battlefield tapped and attacking
The unveiling of new set mechanics is always my favorite part of spoiler season, since their quality has a huge impact on how we perceive that expansion
Youll want a Catalyst Stone to make your flashback costs cheaper, and then youll want Pyromancers Goggles to doubly copy all the red ones, which you might get to cast off the top of your library since youre still using Elsha of the Infinite, plus adding Melek, Izzet Paragon
Also, note that there are tons of great card-draw in White that's not here like Sage's Reverie, Stone Haven Outfitter, Lady of Laughter and the legendary Faramir, Field Commander that have various triggers either ETB or over time when something happens.
Snow Devil is a fun little enchantment, imbuing a creature with the power of an angry snowy blizzard, causing it to be able to fly and, if you control a snow land, get First Strike