You can only use the (1) and (2) effects of “Cyberse Reminder” once per turn. You cannot Special Summon monsters from your Extra Deck the turn you activate either of this card’s effects, except Cyberse monsters.
(1) You can detach 1 material from this card, then target 1 “Cynet” Spell/Trap in your GY; add it to your hand.
(2) If this Xyz Summoned card is destroyed by battle or if this Xyz Summoned card in it’s owner’s possession is destroyed by your opponent’s effect: You can Special Summon 2 Level 4 Cyberse monsters with different names from your Deck, but their effects are negated.