I had the pleasure, and likewise privilege, of being a sparring partner of sorts with Traw and at a time a part of the crusade experience under his oversight. I can't really describe how things began besides watching his crusade streams and possibly playing him in them, but for more then 4 years I got the chance to play him in a variety of fighting games, usually under the fangame/mugen/ikemin blanket.

   Over time, I also had the chance to see some of his influential energy he always seemed to have. I know several projects have been mentioned by now but I directly got to witness him not only spark the revival to Capcom Universe, but also its transfer to Ikemin, the continued efforts in what used to be Marvel Vs Capcom Extended and everything it inspired, the creation of a proper One Piece Great Pirate Colosseum and Dragon Ball Extreme Butoden community, being the creator and owner of several discords, chief of which being the Super Smash Bros Crusade one, and even more that I sadly can't remember. Being an influencer wasn't all he was good at though, and honestly probably came as a result of his multifaceted talent and large reach in all things gaming. He'd stream everything from Megaman X Deathmatch to One Step From Eden, Flash Party to Super Smash Flash 2, but even moreso, he'd put in the work in those communities. Tournaments, testing, even PR at times he could handle with ease alongside streaming and juggling his actual life on the side and the stress that followed without faltering much, and at the risk of putting him on a pedestal, it was insane how interconnected and influential he was, especially in the community aspect of both the games directly and those who watched him on streams.

   Honestly, my greatest regret in trying to come to terms with it all is knowing how infrequently I supported him as of late. From switching positions within the super smash bros crusade devteam which was less direct, to showing up to his streams once every blue moon and actually taking up his opportunities to play games with him, public or otherwise, without much of an explanation on my end. We didn't tend to communicate outside of streams or when nessesary/in more public discussions either, so it just feels like I gave up on him and I won't get the chance to address that with him anymore, which leaves me even worse off in knowing he probably wouldn't have cared much and would've been just fine as he always was.

   He wasn't perfect, something I can attest to in certain fields, even if how is better left out of my mouth. But he deviated from what was "right" at times simply because he had a real passion for what he did, and had it been extinguished, he'd take a break and come back better then ever. In fact, that dedication of his was equally a part of his influence and how several projects were able to move on in both small and big ways, and I'm glad he had it in him. At this point, I can only hope those who he helped both indirectly and directly in the past, present, and into the future have their hearts warmed by Traw's efforts.

Gear-wise Joker has a few items of interest that change his gameplay. Of these are the following

• Crowbar Crush: Gives a groundbounce effect to the end of his meterburned crowbar running move instead of making the opponent hard knockdown slide
• Side Order of Pie: Replaces the start-up of his super (the explosion of the canister) with the one from Injustice 1 (throwing a pie), the rest of it stays the same
• Surprise!: Joker replaces his clattering teeth with a explosive present. While the box launches when it explodes and is a low, its on a fairly predictable timer
• Gasser: Joker gains the ability to meterburn his forward and backward throw in order to bounce the opponent/li]
  

The rest augment his moves a small bit such as swapping out a gas canister with a crowbar in the special where he usual flings the former through the air (which can usually be meterburned to launch the opponent, but since shooting a crowbar doesn't make it explode the latter is a bit less useful) and a replacement to his trait parry in which he stabs the opponent with his knife instead of shocking them (again without meterburn properties, and I do not think it charges his trait meter either)

  As far as I remember, Joker has projectiles but hates to play the true ranged game since his Joker gas canister which when meterburned is also his launcher stops about 1/2 screen despite being a low or something weird like that. His totally lethal bang while covering the fullscreen horizontally can be jumped over or blocked with little worry. And his 1 close ranged projectile, the clattering teeth are good for loops (at least usible 2 times in a combo as far as I remember) and oki but are again, close ranged.

  That being said I do believe his running crowbar assault is an overhead and offers him a decent 50/50 at close range and is a nice hard knockdown for the end of combos. Thats all I remember about Injustice 2 Joker and its probably flawed info but I'm sure some of it will help, probably.

Even though this theory is betrayed when he uses Unibeam as a normal special

And here lies the original version I made before I had to stretch it out to make it fit Iron Man's hand for anyone who cares

You really don't want to give him Unotag (regular tag mode might be fine though, haven't tested it), his grabs become techable far earlier than they should making them effectively obsolete and Sturmangriff Rage just borks itself to the point of becoming what I believe to be an unblockalbe super that locks you for eternity. https://streamable.com/qb2vd https://streamable.com/41qoc