Premier Alexander Romanov

Zombie World Spell/Field All monsters in each player's hand, on the field, and in the GYs become Zombie monsters. During their Main Phase, the turn player can Normal Summon 1 Zombie-Type monster in addition to their Normal Summon or Set. (They can only gain this effect once per turn.) Next: Let's go with a spooky blast from the past. Giant Axe Mummy.

Crimson Knight Vampire Bram DARK/Zombie/Xyz/Effect/Rank 5/2500 ATK/2500 DEF 2+ Level 5 monsters, including a "Vampire" monster If you use a monster(s), with a Level, that is owned by your opponent for the Xyz Summon of this card, treat it as Level 5. You can only use each of the following effects of "Crimson Knight Vampire Bram" once per turn. You can detach 1 material from this card, then target 1 monster in either GY; Special Summon that target to your field, but only that monster can attack or activate its effects for the rest of this turn. If this card is destroyed by battle or card effect: You can activate this effect; Special Summon 1 "Vampire" monster from your GY during the Standby Phase of the next turn. Next: Let's keep with the spooky theme and give some more love to the children of the night: Vampire Baby.

Evil Eye Defeat Trap/Normal If you control an "Evil Eye" monster: You can pay 1000 LP; shuffle 1 card your opponent controls into their Deck, or, if you have "Evil Eye of Selene" on the field, shuffle up to 2 cards your opponent controls into their Deck instead. You can only activate 1 "Evil Eye Defeat" per turn. Next: Thunder Dragon Thunderstormech

Hot Red Dragon Archfiend DARK/Dragon/Synchro/Effect/Level 8/3000 ATK/2500 DEF 1 Tuner + 1+ non-Tuner monsters This card's name becomes "Red Dragon Archfiend" while it is on the field or in the GY. Once per turn, during your Main Phase 1: You can destroy all other face-up Attack Position monsters on the field. Other monsters cannot attack the turn you activate this effect. Next: Divine Dragon Titanomakhia

Chain Resonator LIGHT/Fiend/Tuner/Effect/Level 1/100 ATK/100 DEF When this card is Normal or Special Summoned while a Synchro Monster is on the field: You can Special Summon 1 "Resonator" monster from your Deck. You can only use this effect of "Chain Resonator" once per turn. Next: Mereologic Aggregator

Gilford the Legend EARTH/Warrior/Effect/Level 8/2600 ATK/2000 DEF To Tribute Summon this card face-up, you can Tribute Equip Card(s) you control, as well as monsters. Cards equipped to Warrior monsters you control cannot be targeted or destroyed by your opponent's card effects. When this card is Normal or Special Summoned: You can equip as many Equip Spell Cards from your GY as possible to any Warrior monster(s) you control. You can only use this effect of "Gilford the Legend" once per turn. Next: Since we're talking about bad boss monsters, let's go with Meklord Emperor Skiel, the weakest of the three Meklord Emperors.

Chimeratech Fortress Dragon 1 "Cyber Dragon" monster + 1+ Machine monsters Cannot be used as Fusion Material. Must first be Special Summoned (from your Extra Deck) by sending the above cards from either field to the GY. (You do not use "Polymerization".) The original ATK of this card becomes 1000 x the number of Fusion Materials used for its Special Summon. Monsters your opponent controls cannot attack, except to attack "Chimeratech Fortress Dragon". Notes: ...Not really sure what the intent of this was. I figured just expanding it to any Cyber Dragon would work. Also, gave it something defensive to make it a proper "Fortress". Next: We've tackled Vendreads a few times here. Let's go to the Vendread origin (pun intended). Someone remake Revendread Slayer.

Jinzo - Lord DARK/Machine/Fusion/Effect/Level 8/2600 ATK/1600 DEF "Jinzo" + 1 DARK Machine monster Your opponent cannot activate Trap Cards, or their effects on the field. Negate all Trap effects your opponent controls. During your Main Phase: You can inflict 300 damage to your opponent for each Spell/Trap Card on the field. You can only use this effect of "Jinzo - Lord" once per turn. Notes: Why this wasn't a Fusion in a deck used by a man who was rivals to a strategy all about Fusions, I will never know. Next: You know, the Jinzo support could use a little tweaking. Jinzo - Returner.

Odd-Eyes Pendulumgraph Dragon LIGHT/Dragon/Ritual/Pendulum/Effect/Level 7/2700 ATK/2500 DEF 4 <-> 4 Pendulum Effect: During the End Phase: You can add 1 Ritual Spell from your Deck or GY to your hand, then return this card to the hand. You can only use this effect of "Odd-Eyes Pendulumgraph Dragon" once per turn. Monster Effect: You can Ritual Summon this card with "Odd-Eyes Advent". Each time your opponent Special Summons a monster(s) from the Extra Deck, inflict 300 damage to them. Once per turn, when your opponent activates a Spell Card or effect (Quick Effect): You can place this card in your Pendulum Zone, and if you do, negate that effect, then, if this Ritual Summoned card was placed in the Pendulum Zone this way, you can Special Summon 1 "Odd-Eyes" monster from your Extra Deck. Notes: Removed the summoning restriction. Don't really see what the problem was with the card other than that. Next: Sanwitch. I'm honestly surprised we hadn't gotten around to this one yet.

Odd-Eyes Wing Dragon DARK/Dragon/Synchro/Pendulum/Effect/Level 8/3000 ATK/2500 DEF 8 <-> 8 Pendulum Effect: Once per turn, before damage calculation, if your monster battles an opponent's monster: You can make your monster gain ATK equal to the opponent's monster's ATK, until the end of the Damage Step. Monster Effect: 1 Tuner + 1 or more non-Tuner monsters If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone. During the Main or Battle Phase, if this card was Synchro Summoned using a "Clear Wing" Synchro Monster as material (Quick Effect): You can target 1 Effect Monster your opponent controls; negate its effects until the end of this turn. During the Battle Phase (Quick Effect): You can destroy all Level 5 or higher monsters your opponent controls, then, if this card wasn't Synchro Summoned, destroy this card. You can only use each effect of "Odd-Eyes Wing Dragon" once per turn. Next: Odd-Eyes Meteorburst Dragon

Chaos Goddess LIGHT/Fairy/Synchro/Effect/Level 8/2500 ATK/1800 DEF 1 LIGHT or DARK Tuner + 1+ non-Tuner LIGHT and/or DARK monsters While face-up on the field, this card is also DARK-Attribute. If this card was Synchro Summoned using 2 or more LIGHT monsters as material, all monsters you control gain 500 ATK/DEF. If this card was Synchro Summoned using 2 or more DARK monsters as material, all monsters your opponent controls lose 500 ATK/DEF. You can discard 1 LIGHT or DARK monster, then target 1 LIGHT or DARK monster that is banished or in the GY with a different Attribute and Level than the discarded monster; Special Summon it. You can only use this effect of "Chaos Goddess" once per turn. Next: Blackwing - Brisote the Tailwind

Pot of Generosity Spell/Normal Search your Deck for 2 cards, then add them to your opponent's hand. Shuffle your Deck afterwards. Notes: This can be used to dupe your opponent into getting something you want them to have, instead of shuffling your own cards into your Deck. Next: War Rock Big Blow

Odd-Eyes Supreme Dragon DARK/Dragon/Fusion/Effect/Level 12/0 ATK/0 DEF "Odd-Eyes Pendulum Dragon" + "Odd-Eyes Rebellion Dragon" + "Odd-Eyes Wing Dragon" + "Odd-Eyes Venom Dragon" Must be Fusion Summoned, and Fusion Summoned using the above monsters you control whose original names are the above monsters. During your End Phase, if you control this Fusion Summoned card, you win the Duel. Note: I mean, what else could I give this thing that would be any different? Next: "Rare Fish" + "Sleeping Lion"

Supreme Rage Trap/Normal Activate 1 of these effects: ● If you control a "Supreme King" monster in the Extra Monster Zone: Destroy as many monsters you control in the Main Monster Zones as possible, except "Supreme King" monsters, then, move the "Supreme King" monster in your Extra Monster Zone to an unoccupied Main Monster Zone, and if you do, Special Summon 1 "Supreme King Dragon" monster from your hand, Deck, Extra Deck, and/or GY, ignoring its Summoning conditions, also after that, Set this card face-down instead of sending it to the GY. If you do not control "Supreme King Z-ARC" and 4 "Supreme King Dragon" monsters with different names, this Set card can be activated during this turn. ● If you control a "Supreme King Dragon" Xyz Monster: Attach 2 "Supreme King" monsters to it as materials, from your GY and/or face-up from your Extra Deck. You cannot Summon monsters during the turn you activate this card, except "Supreme King" monsters. Notes: As you can see, the hoops I had to jump through to retain the spirit of this card in Master Rule 4 were substantial. I think this is the longest card text I have ever crafted, but, TL;DR, you use this to, one by one, get out the Supreme King Dragons, landing them into your Extra Monster Zone, then taxiing them away to let another one land. Next: Because this was such a letdown, Odd-Eyes Wizard Dragon.