Synchro Monsters
From memory, I don't think any of us know what this Monster's second effect does, all that matters is that he can blow up the field
Black Rose Dragon
This card's name becomes "Elemental HERO Neos" while on the field.
Elemental HERO Neos Alius
Before the sushi monsters, we had this dark vegetable boat
Number 50: Blackship of Corn
Zombyra The Dark
2100 ATK 500 DEF
Negate any trap for the simple cost of 1000LP
Seven Tools of the Bandit
Face-up, non-dark Monster's worst nightmare
Ally of Justice Catastor
Once per turn: You can Special Summon 1 Zombie monster from your hand or either GY, but if this card leaves the field, destroy all Zombie monsters Special Summoned by this effect.
Il Blud
For the same materials as Utopia, this guy has 100 more ATK, but no effect.
Gem-Knight Pearl
Wall of Illusion
1000 ATK 1850 DEF
You can only activate this card in the Battle Phase when your opponent activates a Monster effect. Very good against the likes of Gorz, Honest, Tragoedia, etc.
Chivalry
Basically a Union Synchro Monster, gives the equipped Monster 1000ATK and if it destroys a monster by battle, inflicts damage equal to the destroyed monster's original attack
Armory Arm
Once per turn: You can Special Summon 1 Insect or Plant monster from your hand or GY.
Gigaplant
2 Level 4's make this creature that will drain half your opponent's ATK and add it to itself
Dark Rebellion Xyz Dragon
Gagagigo
1850 ATK 1000 DEF
Negate any spell/trap that targets exactly 1 Zombie monster
Tutan Mask
Remove all Monsters of this card's Archetype from the grave to gain 200ATK per card until the end phase, but more importantly, if it does battle damage, your opponent mills 3
Iron Chain Dragon
You can Tribute this card, then target 1 Gemini monster in your Graveyard, except [this card]; Special Summon that target, and if you do, it becomes an Effect Monster, and gains its effect.
Blazewing Butterfly
This bird-man wields a long rifle, which he can fire once for Book of Moon, or twice to shuffle a card from the field into the Deck
Castel, the Skyblaster Musketeer
Cyber Jar
900 ATK 900 DEF
Very good at sweeping those pesky Monarch's off their feet
Pulling the Rug
When this card is Summoned, you can Special Summon a Level 4 or lower Warrior from your hand
X-Saber Wayne
This card is treated as a Tuner.
Tuned Magician
This Monster is super useful in Rank4 spam decks, he specializes in adding Monsters like Kagetokage from your deck to hand
King of the Feral Imps
Armed Dragon LV7
2800 ATK 1000 DEF
Originally, this card couldn't even be activated, until it got errata'd and became a Counter Trap card
Counter Counter