The creature returns to the battlefield without a +1/+1 counter on it. Any abilities that trigger when a creature enters the battlefield will trigger or not as appropriate before it receives the +1/+1 counter and resolve after it has received that counter.
07-12-2018
wotc
No player may take actions between the time the creature returns to the battlefield and the time you put a +1/+1 counter on it.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.