You can Ritual Summon this card with "Cynet Ritual". You can only use each of the following effects of "Cyberse Sage" once per turn. During your Main Phase: You can Fusion Summon 1 Fusion Monster from your Extra Deck, by banishing Fusion Materials mentioned on it from your field and/or GY, including a Cyberse monster. If this card is sent to the GY as Synchro Material: You can target 1 Cyberse monster or 1 Ritual Spell in your GY; add it to your hand.