World Lock Isolde Combo

This is a meta-competitive combo deck that summons Arcana Force XXI - The World from Isolde, and uses its effect each turn with Guardragon Pisty and Red-Eyes Darkness Metal Dragon to prevent your opponent from having a turn.

The combo:

-Summon Isolde. Use its effect to search any Warrior.

-Use Isolde's other effect to mill 4 equip spells (Except D.D.R., including Divine Sword - Phoenix Blade and Cursed Bamboo Sword if possible) and summon Armageddon Knight from your Deck (If Armageddon Knight or Plaguespreader Zombie is in your hand, get Dark Grepher instead).

-Add Broken Bamboo Sword to your hand with Cursed Bamboo Sword's effect, and mill Plaguespreader Zombie with Armageddon Knight (Or Dark Grepher).

-Put any dead draw you got on top of the deck (Or the warrior you got with Isolde's effect, if you don't have any) on top of your deck to Summon Plaguespreader.

-Summon Halqifibrax with Isolde and Plaguespreader. Use its effect to summon Vylon Cube.

-Use Vylon Cube and Armageddon Knight to summon Shooting Riser Dragon. Use Cube's effect to search D.D.R., and Shooting Riser Dragon's to mill a level 3 Warrior.

-Banish Isolde and Armageddon Knight from the GY to add Phoenix Blade from your GY to your hand.

-Activate D.D.R., discarding Phoenix Blade to Summon Armageddon Knight. Use its effect to mill Summoner Monk.

-Summon Dugares the Timeless using Shooting Riser Dragon and Armageddon Knight. Use its effect to summon Summoner Monk.

-Use Summoner Monk's effect to summon Planet Pathfinder, discarding Broken Bamboo Sword. Tribute Pathfinder to search Light Barrier. Activate it.

-Use Summoner Monk and Halqifibrax to summon Selene, Queen of the Master Magicians. Use Selene's effect to revive Summoner Monk.

-(Optional): Use any 2 monsters you control, except Selene and Summoner Monk, to summon Knightmare Cerberus or Phoenix, so it is co-linked to Selene. Use its effect.

-Add Phoenix Blade from your GY to your hand, by banishing any 2 Warriors.

-Use Summoner Monk's effect to summon Rescue Ferret, discarding Phoenix Blade.

-Use Selene and Summoner Monk to summon Apollousa, Bow of the Goddess.

-Shuffle Rescue Ferret into the Deck to Summon Black Metal Dragon, any level 1 (except Brotaur), and any level 4, to the zones Apollousa points to.

-Use the monsters you summoned, except Black Metal Dragon, to Summon Artifact Dagda.

-Summon Guardragon Elpy using Black Metal Dragon, and use Black Metal Dragon's effect to search Red-Eyes Darkness Metal Dragon.

-Use Elpy's effect to summon Omni Dragon Brotaur. Use Brotaur's effect targeting Dagda, to search Arcana Force XXI - The World.

-Use Elpy, Dugares, and Artifact Dagda to summon Saryuja Skull Dread.

-Use Saryuja's effect to summon The World from your hand. Choose Heads with Light Barrier's effect.

-Summon Guardragon Pisty using Brotaur.

-Use Pisty's effect to summon Brotaur or Black Metal Dragon, banish it to summon Red-Eyes Darkness Metal Dragon, and use REDMD's effect to summon Brotaur or Black Metal Dragon (Whichever one is still in the GY).

-During the End Phase, use The World's effect to send REDMD and the monster summoned by its effect to the GY to skip your opponent's next turn.

-Repeat the last 2 steps as many times as you need to to win.

Deck Breakdown:

Main Deck:

-Reinforcement of the Army--"Infernoble Arms - Durendal": These cards focus on getting Isolde up as consistently as possible. I included 3 Neo-Spacian Aqua Dolphins because you will want to use its effect as much as possible, to remove any hand traps your opponent may have, and it can make Isolde with any warrior that can be Special Summoned.

-Divine Sword - Phoenix Blade--Arcana Force XXI - The World: These cards are part of the main combo, as detailed above.

-Called by the Grave--Ash Blossom: These cards are used to counter anything that might threaten the combo.  They can be changed out based on the current meta & personal budget.

Extra Deck:

-Invoked Raidjin: This is the best Warrior I could find that can be summoned with Instant Fusion., with the ability to flip an opponent's monster face-down.

-Millennium-Eyes Restrict: If you have Instant Fusion but you can summon Isolde without it, use it to summon this card instead. You never have 5 main monster zones taken up at a time, so you can use this card to protect your entire combo. Can be replaced with something that is useful in more duels.

-Everything else: These cards are part of the combo. I have a second Isolde in case the first one gets negated.

Side deck: These cards are useful against a variety of decks, and can be switched based on the meta & your budget. More info on them below.

Support Cards:

-Called by the Grave: Useful against Ash Blossom and Effect Veiler.

-Prohibition: This card can stop any specific card that poses a threat to the combo, unless it is already on the field.

-Ash Blossom & Joyous Spring: Good for stopping other combo decks, or Gamma. Will also be good to have when/if we get Crossout Designator.

-PSY-Framegear Gamma: Good for stopping an opponent's combo, or to stop Eldlich from being summoned.

-Dark Ruler No More: Shuts down combo decks, but relatively ineffective in other matchups.

Side Deck:

-Harpie's Feather Duster: Destroys opponent's entire backrow, staple against Spell/Trap based decks. You do not need to worry about the Eldlixer/Golden Land GY effects because your opponent will not have another turn to play them on.

-Book of Eclipse: This card works against Eldlich and Dogmatika by flipping the monsters face-down, preventing them from resolving the Golden Land continuous traps or summoning Dogmatika Fleurdelis the Knighted

-Nibiru the Primal Being: This card works well against combo decks. May also work in the main deck.

-Evenly Matched: Works well in certain matchups, but may be replaced.

-Heritage of the Chalice and Super Quantum Red Layer: These cards can be sided in after losing a duel (so you know you're going first) because your opponent won't have any setup to counter. These increase your ability to set up the combo with Isolde.