The set will bring back wedge gameplay (Jeskai, Sultai, Temur, Abzan, and Mardu) and dragons all the things players loved about the first trip to Tarkir
Getting to attack with Scavengers right away and exile another creature, possibly a Zetalpa for Indestructible, is a big deal
Unfortunately, it doesnt do enough to be particularly powerful
and while players have had a decade to familiarize themselves with the exile zone, Phasing has no such named holding zone and brings all sorts of rules complications (like its the only thing that happens on your Untap Step besides untapping your creatures)
Urza, Lord High Artificer is among the best cards you could open p1p1 in this set, and I truly hope not to play vs one at this Pro Tour
When those decks are good in the meta, the spirits player can often win the next turn after a chains