"Return" to Sender
This popular normal summon in rank 8 Kaiju OTK decks is able to search other members of its archetype, but more often than not searches copies of itself.
Starving Venom Fusion Dragon
2 Dark Monsters on the field, except Tokens
Red Dragon, Infernity
Archfiend
This is the only level 1 ritual monster in the game.
Relinquished
Played in Dogmatika Engines, this level 5 monster is critical to generating card advantage as well as acting as a target for a fusion summon.
Shaddoll Beast
This wyrm is played alongside Swordsoul with its ability to act as an extender and board breaker.
Tenyi Spirit - Vishuda
Destiny Hero - Destroyer Phoenix Enforcer
1 Level 6 or higher "HERO" Monster + 1 "Destiny Hero" Monster
Tengu, Monster
Reborn
Based on the Japanese tale of Hachiko, this monster was played in decks as either a way to never run out of cards or as a Shaddoll Fusion target.
Outstanding Dog Marron
This card was so prominent when it was released that it received two erratas: one preventing its special the turn it was sent to the graveyard and its effect being once per duel.
Destiny HERO - Disk Commander
This synchro monster has the ability to recycle monsters used to reborn itself from the graveyard during the battle phase.
Virtual World Kyubi - Shenshen
Frightfur Cruel Whale
1 "Edge Imp" Monster + 1 "Fluffal" monster
Witchcrafter, Resonator
Creation
This plant archetype is built around this singular level 1 vanilla monster.
Sunseed Genius Loci
This cuddly creature has the ability to draw you into even more card advantage when used as material for one of its archetypal fusions monsters.
Fluffal Penguin
This is the equip spell given to Cyber-Stein in order to enable its FTK after its typing has been changed by Reprodocus.
Telekinetic Charging Cell
Rainbow Neos
Elemental Hero Neos + 1 "Ultimate Crystal" Monster
Attack, Dragon
Block
Originally played in Tri-Brigade Lyrilusc due to its level and reborn ability, this spirit monster found itself a home in an FTK variant of the deck.
Kinka-Byo
During a rumor that Master Rule 4 would start players at 10,000 life points, this spell card was immediately bought out.
Ancient Leaf
This monster in its maximum rarity was not only an annoying battle trick, but also gave itself away due to it supposedly reflecting in people's glasses.
Honest
Fossil Warrior Skull Knight
1 Rock Monster + 1 Level 5 or 6 Monster
Lost, Smile
World
This level 1 monster released exclusively in the second wave of McDonalds promos shares an effect with Swordsman From a Distant Land: which is destroying a monster during the 5th End Phase after the attack.
Zone Eater
This monster was the only additional card to be semi-limited during the EX-Zero event.
Pandora's Jewelry Box