Delroy Garrett jr.
*shakes head*
it's rare that I like a character and don't like their origin. but the current 3-D Man has a (imo) really unfortunate intro. know how to make people hate a character who is also a minority? have them constantly remind you that they are a minority by aggressively proclaiming the Avengers to be racist while wearing traditionally African colors, having the name 'Delroy,' and a 90s flat top haircut. then make sure that his powerset sounds like an amped up version of Captain America's but displays as a weaker version of Quicksilver, Spider-man, and any superstrong character's powers. oh and make him a disgraced athlete who used steroids. so not only is he an affirmative action case with a chip on his shoulder. he's also a cheater. well, this started as wanting to revamp him. but I actually kind of want to erase him. anyways...
my take. Odell Garrett jr. comes from a military family. his father had a grudge against superheroes and discouraged his son from idolizing them (even if Odell did secretly look up to guys like luke cage, falcon, etc). Odell's a talented high school athlete but enlists after graduating. he's injured badly while intelligence tasking. he has trouble readjusting to civilian life but does eventually compete in the paralympics. those triune aliens, posing as government scientists, promise to make Odell better; with his service as payment (as the new 3-D Man). they want him to infiltrate the Avengers to find and eliminate an alien infiltrator. this way, 3-D Man still enters the team with a great deal of distrust (and his father's prejudice against supertypes). the Triune aliens intend for the Avengers to be destroyed from within. and they tamper with 3-D Man's powers to make him suspect different Avengers of duplicity. Ultimately, Odell has to learn to listen to his own intuition and focus his powers. he would also have to learn to ask others for guidance; to fully exploit his abilities. he was chosen for a reason. 3-D Man's powers amplify what is already there. Odell was already perceptive, able to strategize/play 3-dimensional chess, and a natural actor/able to see the world through the eyes of others. I'd still give him character flaws. he'd be quick to judge and be super competitive. I barely remember the updated continuity for the original 3-D men. but that stuff should be able to mesh with this. my motive in making these changes was to decrease the importance of his skin color, remove the religious angle (it's a personal turn-off), and give him some qualifications (prior to enhancement) that weren't athleticism based.
maybe some toned down colors on the suit