1. Yes. You can use 死者蘇生復活 but during your next turn as discard occurs at the end of each phase.
2. Remove from play means the card cannot be used except by a card effect, for example D.D.M. - Different Dimension Master, Dimension Fusion and Return from the Different Dimension(Returning Cards are removed from play) http://yugioh.wikia.com/wiki/Removed_from_Play_Zone