Home Field Advantage
Ojama
Ojama Country
All of the Elemental HEROes draw inspiration from American superhero comics. Judging from its helmet and pletheora of specific support cards, including an equip spell, this one appears to be based on Batman
Elemental HERO Bubbleman
Sera's favorite body armor
The Phantom Knights of Shade Brigadine
Chimera Impact Dash (DM)
Chimera, the Flying Mythical Beast
"Despia" Spell/Trap
Aluber, the Jester of Despia
One of the most famous misnamed cards, this normal monster
(NOTE: you must state the name of this card as of its most recent printing)
Slime Toad
Majespecter
Majesty's Pegasus
This link monster's title is a Japanese word that means "All bark and no bite"
Tri-Brigade Ferrijit, the Barren Blossom
This card is arguably the best of its archetype, since it's the only one that can actually remove monsters.
Paleozoic Dinomischus
Burning Soul (5ds)
Red Nova Dragon
Reprinted in a GX duelist pack, this fusion monster incorrectly listed the OCG name of one of its materials, Edgeman.
Elemental HERO Wildedge
Pop da baby
(2 answers accepted)
Babycerasaurus/Petiteranadon
Megalith
Megalith Portal
Several cards in Yugioh are just romanized Japanese names, such as Hoshiningen ("Star Human) and Misairuzame ("Missile Shark"). This card's name translates to "Crescent Moon Blade" (三日月の刃）
Mikazukinoyaiba
This card made history as being part of the first Master Duel banlist, where it was limited.
Conquistador of the Golden Land
Dystopia Blow (Arc-V)
Destiny HERO - Dystopia
Reprinted in the Lost Millenium Special Edition, this monster's text referred to "yoru opponent"
Chaos Emperor Dragon - Envoy of the End
Most commonly seen in Yubel, this card first gained notoreity in the competitive scene as a 1-card Curious, the Lightsworn Dominion.
Dark Beckoning Beast
X-Saber
Saber Vault
This monster gets its name from a French Physicist, who is best known for proposing a theoretical perpetual heat engine, to demonstrate that such a concept is impossible.
Carnot, the Eternal Machine
This was the first Phantom Knight card introduced to the TCG.
The Phantom Knights of Shadow Veil
Thunder Pile (5ds)
Thor, Lord of the Aesir
The original print of this monster accidentally refers to it as a Wyrm Syncro monster.
Baxia, Brightness of the Yang Zing
In the OCG, this was once the best tuner to summon of Cryston Halqifibrax, since it gave you a free body you could use with Summon Sorceress to grab ABC parts.
Mecha Phantom Beast O-Lion
Gouki
Gouki Cage Match
Several monsters get their name from celestial phenomena such as Star Eater, Meteor Black Dragon, and W Nebula Meteorite. 3 monsters get their names from the brighest known objects in the universe, quasars. This monster was the first.
Greed Quasar
Despite being one of the earliest trap cards (and one of the worst), this card's only anime appearance was in 5ds, used by Team Taiyo, to protect Key Mace.
Two-Pronged Attack
Ectoplaster (Vrains)
Altergeist Meluseek
Blue-Eyes Ultimate Dragon
In Edison Format, this is the only other tuner monster Flamvell Firedog can summon.
Nitro Synchron