Fusion Summon 1 "Cyberdark Dragon" from your Extra Deck, by returning 1 each of "Cyberdark Horn", "Cyberdark Edge", and "Cyberdark Keel" from your hand, GY, and/or anywhere on your field, to the Deck, as Fusion Material.
"Cyberdark" Effect Monsters you control that are equipped with an Equip Card cannot be destroyed by your opponent's card effects, also your opponent cannot target them with card effects. You can target 1 "Cyberdark" monster you control; return it to the hand, then, immediately after this effect resolves, you can Normal Summon 1 "Cyberdark" monster. You can only use this effect of "Cyberdark Inferno" once per turn. If this card in its owner's control is destroyed by an opponent's card effect: You can add 1 "Polymerization" Spell or "Fusion" Spell from your Deck to your hand.
Once per turn: You can activate 1 of these effects;
● Target 1 "Cyberdark" Effect Monster you control; equip 1 Dragon or Machine monster from either GY to it as an Equip Spell that gives it 1000 ATK.
● Send 1 Equip Card you control equipped to a Machine monster to the GY; destroy 1 card your opponent controls.
You can only use each effect of "Cyberdark Invasion" once per turn.
When this card is activated: You can add 1 "Cyberdark" monster from your Deck to your hand, with a different name from the cards in your GY. During your Main Phase, you can: Immediately after this effect resolves, Normal Summon 1 "Cyberdark" monster. You can only use the previous effect of "Cyberdark Realm" once per turn. If you equip a monster from your GY by the effect of a "Cyberdark" monster that activated when it was Normal or Special Summoned, you can equip from your opponent's GY instead. You can only activate 1 "Cyberdark Realm" per turn.