Vivien's Memory

(Specialty spells can be cast only if you control a planeswalker or legendary creature with that creature.
They can be cast any time you would cast an instant.)
Choose a creature that died this turn. Return it to
the battlefield as a green Nature Spirit token that's
a copy of the creature. It gains "At the
beginning of your upkeep, put a -1/-1 counter on
this creature."