Yu-Gi-Oh

Yep Double

100

These cards, apart of a series of Xyz monsters double their attack after they battle an opponents monster 

Numerons 

200

This card made with 2 level 4 monsters is usually used for its ability to special summon a monster from the graveyard, however it can also double the attack of one monster on the field if you skip your next battle phase 

Dugares

300

This spell card is mostly played, in cyber dragons or other machine decks, as a finisher 

Limiter removal

400

You double any battle damage your opponent takes when they attack this monster 

Stone Statue of the Aztecs 

500

This formally meta card from a deck that was meta for mostly only 2014, can be discarded from hand when a beast warrior type (XXXX) monster you control battles an opponents monster, doubling the original ATK of your monster 

Bujingi Crane 

I haven't even played yet

100

The first alternate win con we ever saw in yugioh

Exodia 

200

known as one of the original ftks, this ftk was done by catipulting fusions at your opponent

Magical Scientist ftk 

300

This deck caused mass driver and one of its archetype cards cards to be banned 

Frog ftk

400

This deck has been severely crippled after the loss of a card that looks like a lizard made of Legos 

Gem Knight Ftk

500

This level one plant monster was banned due to infinite recursion in the endphase 

Samsara Lotus

weebs

100

Yusei Fudo orders this drink at a bar due to censorship 

Milk

200

 Tyranno Hassleberry from GX said this iconic speech about what happened to him on a routine dig, giving him this type of dna

YA SEE, A FEW YEARS BACK, ON A ROUTINE DIG FOR DINOSAUR FOSSILS, A LANDSLIDE BROKE OUT AND NEARLY BROKE MY LEG IN TWO. THEY HAD TO OPERATE QUICKLY, SO THEY USED THE DINOSAUR BONE I FOUND TO SAVE MY LEG. EVER SINCE, I'VE HAD WHAT THEY CALL DINO DNA. THE DOCTER SAYS IT MAKES ME STRONGER THAN THE AVERAGE JOE.

300

In this climactic duel, the hero would have one against the villain if he did not pass out on top of a blimp

Joey vs Odeon 

400

In the duelist kingdom arc, in a duel between these 2 people, one of them threatens to kill themselves if the other does not let them win

Kaiba vs Yugi Duelist Kingdom

500

In the duel between these 2 individuals, the loosing heroin is eaten alive by flesh eating bugs in the manga, being censored to an hourglass in the anime 

Mai vs Marrick

No you cannot

100

This normal summoned rock stops all mosnter effects, it is usually played in shinobirds or true draco

Amano Iwato

200

The no fun dragon

True king of all Calamities 

300

This number monster could declare a type of card once per turn, the declared type could not be activated or in the case of monsters activate its effects until the end of your opponents next turn

Shock Master

400

This card was able be summoned on your opponents turn in order to stop monster effects

Outer Entity Azathot

500

By removing 3 counters, this thunder monster stops all effects from being activated this turn

Thunder king the Lightningstrike Kaiju

The reason we do ____

100

This deck is the reason most players do not place spells and monsters in the same column

Mekk Knights

200

This card is the reason most players place a large deal of back row removal including cyclone in their side deck

Mystic Mine

300

This card is the reason many players attack in acending order of attack power with their monsters 

Gorz 

400

This deck is the reason why 1 is the second most called number for reasoning 

Infernoids 

500

This card had power for a long time leading to a while in early yugioh to not set too many backrow for fear of being hit by this card

Heavy Storm