If I exile a creature with say an {Oblivion Ring} or some other such card that would bring the exiled card back into play, if I {Pull from Eternity} to move it into the graveyard will it never come back into play? Also if I exile it from the graveyard using something like {Rats' Feast} will it come back into play?
If you opponent oblivion rings a creature then you move it to the gy with pull from eternity, if oblivion ring is destroyed it wont be returned to play bc it is no longer in exile. However, if its in the gy you don't have to wait for o ring to be destroyed. You can return it to your hand or play provided you have some kind of re animation in your deck.
If you exile the same card once its put into the GY from exile with rats feast and O ring is destroyed it will not come back into play bc it is a different object than what was exiled with O Ring.
RESOLVED
BAM nailed it! +1 :)