Dark Sage is a Level 9 DARK Spellcaster monster that must first be Special Summoned from your Deck by Tributing a Dark Magician you control on resolution of Time Wizard's effect in which you call the coin toss right. If you Special Summon Dark Sage this way, you can add any Spell from your Deck to your hand. This Deck aims to turbo out Dark Sage through Isolde, Two Tales of the Noble Knights Summoning Armageddon Knight from Deck, sending Summoner Monk from Deck to GY, and reviving it with Number 60: Dugares the Timeless.
Full combo requires 2 cards: A way to get to Isolde and a way to get a Level 4 monster on field without using your Normal Summon. For example, let's say you have Vision HERO Vyon and Photon Thrasher. Special Summon Thrasher from hand and Normal Summon Vyon. On Normal Summon, Vyon dumps Destiny HERO Malicious from Deck to GY. Malicious banishes itself from GY to Special Summon another Malicious from Deck. Vyon and Maliciouos Link off into Isolde, Two Tales of the Noble Knights. On Link Summon, Isolde adds a card we don't need to hand like Vyon or Thrasher. Isolde sends 4 Equip Spells from Deck to GY to Special Summon a Level 4 Warrior monster from Deck. I recommend at least sending Cursed Bamboo Sword or Phoenix Gearblade to get a Spell to hand. Cursed Bamboo Sword can add Broken Bamboo Sword from Deck to hand if it is sent to GY and Phoenix Gearblade adds itself from GY to hand if it is sent to Gy or banished to activate a monster effect. Isolde Special Summons Armageddon Knight from Deck, and on Special Summon, Armageddon Knight sends Summoner Monk from Deck to GY. Xyz Thrasher and Armageddon Knight into Number 60: Dugares the Timeless. Dugares detaches 2 Xyz Materials from itself to Special Summon Summoner Monk from GY in Defense Position. Summoner Monk discards a Spell from hand to Special Summon a Level 4 monster from Deck, being Rescue Ferret. Rescue Ferret shuffles itself back into Deck to Special Summon monsters from Deck whose total Levels equal 6 to zones a Link Monster points to with their effects negated, destroying them during the End Phase. Special Summon Time Wizard and Blue Dragon Summoner to the zones that Isolde points to. Link off Isolde and Time Wizard into Selene, Queen of the Master Magicians. Selene places Spell Counters on herself equal to the number of Spells on field and in GY on Link Summon which is usually 4 or 5 at this point. Selene then uses 3 Spell Counters to Special Summon Time Wizard back from GY in Defense to Linkpoint. Link Blue Dragon Summoner, Dugares, Summoner Monk, and Selene into a 4-material Saryuja Skull Dread. Since Saryuja was made with 4 materials, draw 4 cards and place 3 cards from your hand on the bottom of your Deck in any order. Use this as an opportunity to dig for copies of Second Coin Toss to ensure that your Time Wizard goes through. Blue Dragon Summoner also triggers to add a Normal Dragon, Spellcaster, or Warrior monster from Deck to hand, adding Dark Magician. Since Saryuja was made with at least 3 materials, it can Special Summon a monster from your hand. Use this effect to Special Summon Dark Magician from hand. Activate Time Wizard's effect and call it right. Special Summon Dark Sage from Deck by Tributing Dark Magician, and on Special Summon, Dark Sage will add World Legacy Monstrosity from Deck to hand. Activate targeting Dark Sage with Monstrosity to Special Summon Prediction Princess Bibliomuse and World Legacy Guardragon Mardark. Use Mardark and Dark Sage to Xyz Summon Mereologic Aggregator and on its Xyz Summon, use its effect to send Herald of the Arc Light from Extra Deck to GY. Because Herald is sent to GY, it can search for a Ritual Monster or Ritual Spell. Use this to search for Prediction Princess Tarotreith. Activate Aggregator’s other effect targeting Herald in GY, detach Mardark from Aggregator and attach Herald from GY to it. Link off Mereologic Aggregator and Saryuja into Lib the World Key Blademaster which we are able to do because World Legacy Guardragon Mardark is in GY. Herald is sent to GY again, so use it to search for a copy of Underworld Ritual of Prediction. Activate Underworld Ritual, tributing Bibliomuse on field in order to Ritual Summon Tarotreith from hand. Bibliomuse will trigger in GY off of being tributed and sent to GY. Special Summon it back to your field from GY in face-down Defense Position. Use Tarotreith’s effect to flip Bibliomuse face-up. Bibliomuse’s Flip Effect triggers which allows you to add a Prediction Princess and a Ritual Spell from Deck to hand. Search for another copy of Underworld Ritual of Prediction and a Prediction Princess Tarotrei. Activate that copy of Underworld Ritual you searched to Ritual Summon Tarotrei from hand by Tributing Tarotreith on field. Activate Lib’s effect to set World Legacy Succession from your Deck. Activate Succession to Special Summon back either Mardark or Dark Sage to Linkpoint. Xyz Summon Laevateinn, Generaider Boss of Shadows by using Bibliomuse and the monster you Summoned back. Proceed to your End Phase and Tarotrei will be able to Special Summon Tarotreith back from GY face-down. Moving onto your opponent’s turn, during their Standby Phase, activate Underworld Ritual in GY by banishing it to Special Summon a non-Ritual Prediction Princess from Deck face-down. If your opponent has no response, activate Tarotrei’s effect to change Tarotreith to face-up Attack Position. Underworld Ritual will Special Summon a Bibliomuse from Deck face-down. Tarotreith’s Flip Effect triggers to Special Summon Deus-X Krawler from Deck face-down. During your opponent’s Main Phase, use Tarotreith’s effect to flip up Deus-X and Bibliomuse to negate all activated monster effects on your opponent’s field and to search another Prediction Princess and another Ritual Spell. And you also have access to Laevateinn for removing cards from your opponent’s field.
This Deck is a mess, so I'll cover each of the card clusters that go together. For the Prediction Princess portion of the Deck, we are playing 2 Prediction Princess Tarotrei, 1 Prediction Princess Tarotreith, 2 Prediction Princess Bibliomuse, and 3 Underworld Ritual of Prediction. We are playing a much smaller amount of Prediction Princess cards because we still want access to them, but we want to access them solely from the Deck. If you draw 1 piece, it is fine, but drawing more than that will mean that we are not drawing any combo pieces. To go with them, we have 2 World Legacy Guardragon Mardark and 2 Deus-X Krawler. Mardark is a Level 9 for World Legacy Monstrosity and is also a World Legacy monster in name to turn on Lib the World Key Blademaster. As for Deus-X, it will be Summoned off of Tarotreith.
For the Dark Sage package, we are playing 1 Dark Sage, 1 Dark Magician, 2 Blue Dragon Summoner, 2 Time Wizard, and 3 Second Coin Toss. Dark Sage can be Summoned straight from the Deck, so we only need the 1 copy. Dark Magician is searchable off of Blue Dragon Summoner which you will get off of Rescue Ferret. The same goes for Time Wizard, whom we are playing the Second Coin Tosses for as they help ensure that we call the toss right.
For the Isolde package, we are playing 2 Destiny HERO Malicious and 3 Vision HERO Vyon, 3 Neo Space Connector and 2 Neo-Spacian Aqua Dolphin, 1 Reinforcement of the Army, and 1 Armageddon Knight. Mali and Vyon get you to Isolde through 1 card and the same goes for Connector and Aqua Dolphin. Armageddon Knight is what we are getting off of Isolde. We are not playing the whole D.D.R. - Different Dimension Reincarnation and Blackwing - Zephyros the Elite mumbo jumbo because we only need the 1 send off of Armageddon Knight. For our Equips, we are playing 1 Broken Bamboo Sword, 1 Cursed Bamboo Sword, 1 Moon Mirror Shield, 1 Living Fossil, 1 Phoenix Gearblade, and 1 Overdone Burial. Living Fossil can just bring back a Level 4 or lower monster from GY if you do draw it. Overdone Burial discards a monster to target a monster in Gy whose Level is lower than the discarded monster's Level and Special Summon it. It's not great, but it is still a reborn spell at the end of the day that does something for us if we do accidentally open it. Cursed Bamboo Sword and Phoenix Gearblade both have the ability to add a Spell to your hand if sent to GY. Cursed Bamboo Sword gets you Broken Bamboo Sword from Deck to hand while Gearblade adds itself from GY back to hand. This ensures that you have a Spell in hand to discard to activate Summoner Monk's effect.
For the extra Level 4 enablers, we have 3 Photon Thrasher, 1 Instant Fusion, 3 Ready Fusion, and 1 Monster Reborn. Thrasher just Special Summons itself from hand if you control no monsters. Instant Fusion can get us Master of Ham, but it can also get us Karbonala Warrior which is Level 4 for a free Level 4 on field for us to use to make Dugares. The same goes for Ready Fusion. Reborn can bring back a Neo Space Connector that you used as Link Material for Isolde as long as you didn't add a Connector to hand off of Isolde's effect on Link Summon.
For everything else in the Main Deck, we have 2 Rescue Ferret, 3 Summoner Monk, 3 Magical Mallet, 3 Reload, 1 World Legacy Monstrosity, and 1 World Legacy Succession. Ferret can shuffle itself from field into Deck to Special Summon monsters from your Deck whose total combined Levels equal 6 to zones Link Monsters point to. This is how you are accessing Blue Dragon Summoner and Time Wizard as Summoner is a Level 4 and Time Wizard is a Level 2. You Special Summon Ferret from Deck through Summoner Monk who discards a Spell to Special Summon a Level 4 monster from Deck. Monk is what you are always going to be dumping off of Armageddon Knight so that Dugares can bring it back. Mallet and Reload allow you to try to correct your hand and it can also shuffle a Dark Sage back into Deck because you want that it in Deck as it is a hard brick. Monstrosity is searched off of Dark Sage on Summon and it is what gets you to Bibliomuse and Mardark from Deck. Succession is set from Deck off of Lib and it allows you to get a Level 9 back from Gy to have material for Laevateinn, Generaider Boss of Shadows.
Extra Deck: 1 Master of Ham which you usually don't summon even if you have Instant Fusion because Ham itself and the monster you get off of it blocks your zones which you need for Link Summoning and Rescue Ferret stuff. 1 Karbonala Warrior as an accessible Level 4. 1 Herald of the Arc Light which searches a Ritual Monster or Ritual Spell if sent to Gy. 1 Mereologic Aggregator which dumps Herald from Extra Deck on Xyz Summon and detaches to reattach Herald from GY for another send when sent to Gy. 1 Laevateinn, Generaider Boss of Shadows and 1 Jormungandr, Generaider Boss of Eternity for our Rank 9 interruption option. 1 Number 60: Dugares the Timeless which detaches 2 to Special Summon a monster from Gy which you use to get back Summoner Monk you dumped off of Armageddon Knight. 1 Apollousa, Bow of the Goddess which you could go into if you are interrupted and are unable to continue comboing. 1 Saryuja Skull Dread. We are using it's 3 mat effect to Summon Dark Magician from hand and using its 4 mat effect to dig for Second Coin Tosses. 1 Selene, Queen of the Master Magicians to Link off Time Wizard to refresh it as Ferret negates its effects. 1 Lib the World Key Blademaster to get us Succession to bring back a Level 9 for Rank 9 plays. 1 Isolde, Two Tales of the Noble Knights to access Armageddon Knight. 1 S:P Little Knight, 1 I:P Masquerena, and 1 Dharc the Dark Charmer, Gloomy.