This fic is bloody brilliant.
I love it and I literally can't wait to read more.
Please post more soon

I will try to recreate the Arc reactor and the iron Man suits then apply it to Batman's flexible combat gear and take bits of halos Master Chief's armor and incorporate that into my new armor try to recreate extremis take all the good about Bruce Wayne / Batman and Tony Stark / iron Man and incorporate information from tech sci-fi anime TV shows basically become badass maybe even the Captain America formula eventually. Exercise / built me up to the point where I can do exercises like the one punch Man TV anime and when the darkside asks for the anti-life equation I will send him to the antimatter dimension (life is still there just antimatter hehehehe) Just to mess with him and say "you want the anti life equation and sent you to proper place to find out about it, duh!"

Very interesting story

I like

Continue.

Update please

STAN!

Wait! so he's tony's friend? A little unexpected there.

And I just got to read again if I did forget something and noted something particularly funny as hell, you try to "stop the bleeding putting a jacket to cover the bleeding, right? so if the physician says she got head trauma and bleeding, wasn't Grayson (pff) suffocating her -style assassin seducer killing drugged seduced with a pillow or "I prefer this reality when you don't suffer than seeing an random untreated stranger with an scratched pinkie bleeding her guts out in the asphalt" lol

...What the hell? This chapter is so rushed it's confusing, you tried to do a little foreshadowing at the beginning but when a real accident happens you wrote "I look out and rush out of the car with Alfred hot in his wheelswut), I don't want to be accused of flaming or not making any constructive argument or anything so I'll say here that you didn't try to build any tension to the meeting of a important character (in this case Jean the future host of Phoenix) , you didn't describe the situation you just wrote you tried to "stop the bleeding(?see? the readers wouldn't understand because you didn't describe where she was bleeding or if it was serious or she had scratched her pinkie when being thrown out of the car, was she redheaded? was she hot as hell or an mangled corpse? was she Jean's mother, father or herself (you could just describe her and sayI think this vibrant shade of red is familiar but I can't put my finger into why. etcetera etcetera... At the end Grayson (which if I'm not wrong is a surname, I think) just go see her/they at the hospital for no reason, humans don't function that way, you see an accident, you could try to help if you know how, but you don't follow the ambulance to the hospital and stay in waiting room like a worried husband for the safety of his pregnant wife while your butler run in the corridors of the hospital and helps at the surgery of Jean's mother pinkie that was unfortunately scratched and informs you of the situation (I'm just ranting I know but I don't like to sound like a jerk so I just thrown some jokes, or not-jokes if you want to see it as that) BE MORE DESCRIPTIVE!

I have my doubts since you seems to be ultimate indecisive man (I mean, Marvel merged with DC is something that almost really happened but Grayson Wayne, seriously? His second name is Terry or maybe Damian by any chance? Confusing as hell...) and you pointing too much at how every single character you see looks like your favorite actor playing favorite version, but it's not like you made any serious errors yet. So I going to follow it for an time at least. I mean, transitions can be better and you seems to have dissapered sentence in the first meeting with Jean Grey (and now you choice of the MC name seems even worse) but nothing really off-puting. Hey, you are not going to make Martha a Poison Ivy and murder Thomas aren't you?
And seriously, consider to change the name for MC if not back to Bruce to at least something else but not Greyson.

I like the story, but I'm the first two chapters time is based on Grayson's age, in this one you use the year, so there is no indication of how much time has passed. also if you are going to have him and Jean act like kids, it would be hilarious to have a seen of them making tinfoil hats to try and block her mind reading. if you are trying to have a very mature, no nonsense Grayson, then that would be very out of character.

interesting story so far thx for writing it

Let’s see where you go with this. I’d say keep superman, darksaied and Luthor out of this and it will be a blast. Otherwise too many characters to follow properly

Noice

STAN LEEE! RIP