Gwen, Hallowed Seamstress

Whenever you cast a noncreature spell, Gwen
gains +1/+0 and first strike until end of turn. If
this is the second time this ability has resolved
this turn, Gwen gains double strike instead.
Whenever a creature Gwen has dealt damage to
this round dies, each opponent loses 2 life and
you gain 2 life.
Whenever Gwen deals combat damage to a player,
you may surveil 2.