As you can tell by the picture provided, he's humanoid red dragon with fully developed wings. He clothes are inspired by 14th century buccaneers. He duel wields 2 magic swords. Eater of Metals and Portalbrande. What isn't shown is that he has various small magical time based devises on his person, each having their own unique function.
That's right, foreground. Drax is from the future. He was a lead inventor to a new type of magitek, the kind with the ability to manipulate temporal reality. However, one of his projects went awry, as one does when messing with fundamental components of the universe. It sent him to the even more far future, as well as a time similar to 2020, (He fortunately avoided learning what an NFT is) and even prehistoric times. However, a dinosaur stepped on his device, sending him through one more jump to this current time. He fully intends to get the components needed to travel back to his original time. Though, he was curious how he is able to travel back in time before the creation of his machine, he's going to blame loop theory. He likes to imagine that he's negative in age because of this whole mess.
Besides being obviously intelligent in both magic and late 23rd century tech, Drax has a precedent for innovation and will push the envelope in all areas of his life. Cuisine, hobbies, fashion, it doesn't matter. He'll always go to the biggest and newest thing. Dragons are naturally greedy, and Drax is no exception, he is a reckless spender. Despite his "Live life to the largest" philosophy, he can be very nostalgic, and will 100% collect things no longer available in his base time. As for social situations, he's very assertive, but not aggressively so, this is reflected in his combat style, which is very melee oriented.
Drax has various time based powers, including:
Save Point: Using a solar powered watch, Drax is able to create a save point in any location, upon activating the watch again, he will immediately teleport to the saved point. He can sadly only keep one save point at a time and limited in uses when his watch hasn't charged.
Echo Clones: When Drax swings his weapon, he is able to replicate that move again following another attack. For example, he can swing widely preemptively and then stab at your legs, causing a green shadow of himself to appear and replicate the swing attack. This makes it almost like fighting 2 versions of himself at once.
Perfect Spatial Recall: His tech allows him to analyze the composition and shape of any area he's been in, allowing for total ease of travel and discovery of hidden areas. Sadly this doesn't work on lifeforms, or areas that have recently destroyed, Drax himself will have to autosync it to the new states.
As for his weapons:
Eater of Metals: Inspired by the concept of Megaman, Eater of Metals has elemental memory, it can replicate the elements of previously defeated enemies, right now it's only state is fire, but it can do things like ice, darkness, or even magnetism.
Portalbrande: A weapon designed to make mincemeat of the laws of spacial relations. Drax can activates its magitek to temporarily make a portal in an area, and use it again to make a connecting portal. Creating a 3rd portal will connect it to the 2nd, but destroy the 1st. Sadly, it won't work with objects in the way, so he can't rend someone into oblivion with it.