At first I wasn't sure if it was 007 or 47. Now it's obvious.

Fun Fact: Billy the Kid has an A ranked skill called Quick Draw.

Que gran historia y una recomendación para los siguientes personajes que sean Danny Phamton, Naruto Uzumaki, Acnologia y Meliodas

It's Joe Chill, isn't it? The guy that shot Batmans Parents?

The petty criminal that killed Batman’s parents.

Gilgamesh's luck is as high as his is though? Shouldn't that account for something?

hope you update soon

ah the guy who killed Bruce's parents

gotta say, this chapter was weak as fuck, also pretty sure Gilgamesh can't fucking destroy a DIMENSION,

John Constantine?

When I wrote 6 holy grail war I meant the 5th one where Shiro and the fate stay night happen.

Try Ben 10 or generator rex
I have a list
Ghost Rider - 6th holy grail servant Rider or fate zero caster or fate zero berserker, or avenger.
Kamen Rider Saber - 6th holy grail war Saber
Ben 10 - Foreigner (its an actually class) 6th holy grail war, (maybe make foreigner class happen as a failed attempt by Medea to summon assassin?) Hope he can make her into a good guy like Kevin.
Carnage - fate zero berserker or fate zero caster, or 6th holy grail war assassin or as 6th holy grail lancer, avenger or have it set in a timeline where instead of creating the avenger servent class, it was the foreigner class, (Carnage has been connected to knull and the creator of the darkhold so he very likely to be summonable replacment for that timeline's world evils). (I - no there needs to be a devil carnage or carnage possessed master, demons and servant.)
generator rex - 6th holy Grail war Rider or berserker since he did once turn to a giant robot and wreck a city when he was a boy.
Dante (devil may cry) - either as assassin for the 6th holy grail war or saber for 6th holy grail war.
Hulk - berserker 6 holy grail war. (Enough said)
Doctor strange - caster for 6th holy grail
Spider-man - either as assassin or avenger (hope the two shared their experiences and turn Medea good)
Hawkeye - archer 6th holy grail war.
Toxin - saber, cause why not have a another symbiote.
The Doctor - foreigner, caster, or assassin for the 6th holy grail (his myth and legend would make him so OP, hope he turns Medea into a companion)
Misaka (a certain scientific railgun) lancer.
Touma (a certain magical index) caster fate zero (there would be irony) or as the 6th holy grail assassin for fate stay night.
Kanzaki (a certain magical index) assassin for 6th holy grail wars.
Scarlet spider (Reilly or Kane) for assassin for the 6th holy grail war or also rider for thd 6th holy grail war (since they used their webs to travel maybe? Or for just the fun of it to mess around or change things up,)
Ruby Rose: both assassin or lancer (due to her insane speed) for maybe the 6 holy grail war or whay you decide on that.
MCU Black widow - assassin for 6th holy grail war.
There also MCU iron man you could use for the 6th holy grail war but he be hard to put into a class, some people suggested rider due to the armor but I'll leave that up to you.
This is fun to read as am thankful for this fic, I do hope you can contain this.

Pretty obvious, he's Joe Chill, the random mugger who shot up the Wayne family and caused the events that led to Batman.

Wow... didn't expect Joe Chill

Joe chill, fucking Joe chill. The Wayne family killer and the one who gave birth to the damn Batman. Man, this blew my mind.