You can only activate 1 card with this card’s name per turn.
(1) Add 1 “Nemurelia” monster from your Deck to your hand, then, if you have a face-up “Dreaming Nemleria” in your Extra Deck, your opponent cannot activate cards or effects when a “Nemurelia” monster(s) is Normal or Special Summoned for the rest of this turn.
(2) You can place this card from your GY on the bottom of the Deck, then target 1 “Dreaming Nemleria” you control; add it to your Extra Deck face-up.