Top 10 Terrible Boss Monsters in Yu-Gi-Oh

#10. Red-Eyes Darkness Dragon

- Card Type : Monster

- Attribute : DAR K

- Type : Dragon / Effect

- Level : 9 Stars * * * * * * * * *

- ATK / DEF : 2400 / 2000

- Card Text : Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by Tributing 1 "Red-Eyes B. Dragon" and cannot be Special Summoned by other ways. This card gains 300 ATK for each Dragon-Type monster in your Graveyard.

#9. Gate Guardian

- Card Type : Monster

- Attribute : DARK

- Type : Warrior / Effect

- Level : 11 Stars * * * * * * * * * * *

- ATK / DEF : 3750 / 3400

- Card Text : Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by Tributing 1 "Sanga of the Thunder", "Kazejin", and "Suijin".

#8. Armityle the Chaos Phantasm

- Card Type : Monster

- Attribute : DARK

- Type : Fiend / Fusion / Effect

- Level : 12 Stars * * * * * * * * * * * *

- ATK / DEF : 0 / 0

- Card Text : "Uria, Lord of Searing Flames" + "Hamon, Lord of Striking Thunder" + "Raviel, Lord of Phantasms"

Must first be Special Summoned (from your Extra Deck) by banishing the above cards you control. (You do not use "Polymerization".) Cannot be destroyed by battle. Gains 10,000 ATK during your turn only.

#7. Armed Dragon LV10

- Card Type : Monster

- Attribute : WIND

- Type : Warrior / Effect

- Level : 10 Stars * * * * * * * * * *

- ATK / DEF : 3000 / 2000

- Card Text : This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by Tributing 1 "Armed Dragon LV7". You can send 1 card from your hand to the Graveyard to destroy all face-up monsters your opponent controls.

#6. Elemental HERO Divine Neos

- Card Type : Monster

- Attribute : LIGHT

- Type : Warrior / Fusion / Effect

- Level : 12 Stars * * * * * * * * * * * *

- ATK / DEF : 2500 / 2500

- Card Text : Must be Fusion Summoned using any 5 "Neos", "Neo Space", "Neo-Spacian", or "HERO" monsters, including at least 1 "Neos" or "Neo Space" monster, 1 "Neo-Spacian" monster, and 1 "HERO" monster, and cannot be Special Summoned by other ways. Once per turn: You can banish 1 "Neos", "Neo Space", "Neo-Spacian", or "HERO" monster from your Graveyard; this card gains 500 ATK, and until the End Phase it also gains the banished monster's effects.

#5. Neos Wiseman

- Card Type : Monster

- Attribute : LIGHT

- Type : Spellcaster / Effect

- Level : 10 Stars * * * * * * * * * *

- ATK / DEF : 3000 / 3000

- Card Text : Cannot be Normal Summoned or Set. Must be Special Summoned (from your hand) by sending 1 face-up "Elemental HERO Neos" and 1 face-up "Yubel" you control to the Graveyard, and cannot be Special Summoned by other ways. This card cannot be destroyed by card effects. At the end of the Damage Step, if this card battled an opponent's monster: Inflict damage to your opponent equal to the ATK of the monster it battled, and you gain Life Points equal to that monster's DEF.

#4. Meklord Astro Mekanikle

- Card Type : Monster

- Attribute : LIGHT

- Type : Warrior / Effect

- Level : 12 Stars * * * * * * * * * * * *

- ATK / DEF : 4000 / 4000

- Card Text : Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by sending 3 "Meklord" monsters from your hand to the Graveyard, and cannot be Special Summoned by other ways. Once per turn: You can target 1 Synchro Monster your opponent controls; equip that target to this card. This card gains ATK equal to the combined ATK of the monsters equipped to it by this effect. Once per turn, during your Standby Phase: You can send 1 of these equipped monsters you control to the Graveyard; inflict damage to your opponent equal to that monster's original ATK. You cannot conduct your Battle Phase the turn you activate this effect.

#3. Helios Trice Megistus

- Card Type : Monster

- Attribute : LIGHT

- Type : Pyro / Effect

- Level : 8 Stars * * * * * * * *

- ATK / DEF : ? / ?

- Card Text : You can Special Summon this card by Tributing 1 "Helios Duo Megistus". This card's ATK and DEF are each equal to the number of removed from play monsters x 300. After this card attacks, it can attack once more if your opponent controls a monster. If this card is destroyed by battle and sent to the Graveyard, Special Summon it during the End Phase and it gains 500 ATK and DEF.

#2. Machina Force

- Card Type : Monster

- Attribute : EARTH

- Type : Machine / Effect

- Level : 10 Stars * * * * * * * * * *

- ATK / DEF : 4600 / 4100

- Card Text : Cannot be Normal Summoned/Set. Must be Special Summoned by "Commander Covington". You must pay 1000 LP to declare an attack with this card. You can send this card you control to the GY, then target 1 "Machina Soldier", "Machina Sniper", and "Machina Defender" in your GY; Special Summon those targets.

#1. Spirit of the Pharaoh

- Card Type : Monster

- Attribute : LIGHT

- Type : Zombie / Effect

- Level : 6 Stars * * * * * *

- ATK / DEF : 2500 / 2000

- Card Text : This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by the effect of "The First Sarcophagus". When this card is Special Summoned, you can Special Summon up to 4 Level 2 or lower Zombie-Type Normal Monsters from your Graveyard.