If I use Zoroark's "Phantom Transformation" Ability to put a Stage 1 Pokemon from my discard pile in its place, may I evolve it into a Stage 2 Pokemon right away?
The Stage 1 Pokemon you're putting in play is completely new; nothing carries over, and you can't evolve a Stage 1 that came into play that turn.
Source: Evolving Skies FAQ; TPCi Rules Team (2021-08-26)

Relevant cards

Note: All applicable cards may not be listed below.
SWSH7_103
SWSH7_103