I have a Night of Souls' Betrayal, and so does my opponent. Creatures get -2/-2.
I have a Marchesa, the Black Rose, relevant text:
Whenever a creature you control with a +1/+1 counter on it dies, return that card to the battlefield under your control at the beginning of the next end step.
I play a Rakdos Cackler, a 1/1 with Unleash.
If I choose to have Rakdos Cackler enter with a counter, will it have a +1/+1 counter on it when it dies? Will Marchesa's ability return Rakdos Cackler to the battlefield at the next end step?