Don Krieg is an One Piece villain who boasts an impressive arsenal of weapons and is a threat to any normal human. Powerful armor, exploding spear, spiked cape, gas bombs, and in my fics he got even more upgrades. However, despite his ego and many weapons, he is not the strongest in One Piece or my stories by a long shot. Who can beat him (my version)?
Can: Axel
Axel was an ordinary Padawan, until Spike changed him into a bloodsucker. With the Force amplified and his new vampiric abilities, Axel is fearsome for Krieg. His skin can tank several bullets, the toxic gas will be useless against him because he is a vampire, and he can deflect the flamethrower and missiles with the Force.
Can't: Jonnie Goodboy Tyler
A very good matchup, both are the most powerful in their turf and have massive armies under them, and both are the best fighters in them by a long shot. Jonnie would put up a good fight, he can certainly draw blood with his blaster. But Krieg has the edge. He can counter strong punches with his spiked cape, and in close range he uses an exploding spear, while Jonnie uses nothing more advanced than a blaster. With that said, Jonnie at least is strong enough to take several hits.
Can: SkullFace
A powerful EarthWalker who can breathe fire and ice, he is way above Don Krieg in combat. The Don needed help from a Starfleet assassin and still got the boot halfway through the battle, so he can't win in a 1-1 battle. Most of his arsenal can be burned or frozen, only his gas bombs can give Don the edge. Not that the triceratops will let him throw it.
Can't: Kuh'blai
This Yuuzhan Vong Commander is quite competent, and Force Users fear him. However, despite his thick armor and him being a serious threat with the amphistaff and Blast Bugs, he is beneath the Don and his new upgrades. Now Krieg can use several blasters at once, and even fire a rocket. His exploding spear also makes a melee duel with an equal in skill very very unfair.
Can: Forge
The only threats to this vampire are the flamethrower and the barrage of blaster bolts. Otherwise, he stomps. He is immune to toxic gasses, is fast and physically powerful. But his gift is what makes the fight tip in his favor by far. He can rust most metal weaponry. Meaning he can render Krieg's massive arsenal useless, even his spear.
Can't: Arachnotron
Krieg has recently become a bit stronger than Rookie Killers. And while he would struggle a lot with the Legion, he can definitely outfight a single Arachnotron. While the Arachnotron is very durable, can climb walls and is agile, and has a plasma turret in its belly, Don Krieg can fire grenades, rockets, lasers and bullets at an even faster rate, and his armor and shield can mitigate the damage. He can also use his net to make the beast an easier target.
Can: Jannah
Jannah will definitely struggle, as Krieg can seize her with his net and use a gas bomb, or pelt her with several bullets and blaster bolts. But Jannah has the Force, and also an impressive arsenal. She can deflect the blaster bolts with her saber, stop the bullets with the Force, anticipate and dodge the exploding spear, cut through the net with her green lightsaber, and has two arrows that can get through Krieg's armor: Bomb Arrows and Acid Arrows. Her Plasma Arrows will finish the job then. Not an easy victory, but stakes are in her favor.
Can't: BB-8
Sure, this fight will take some effort from Krieg, and he might even be knocked down. Thanks to Rose's new upgrades, BB-8 can now fight several enemies. While he would tear through his opponent's army with ease, and can counter the flamethrower with his own, the gas bomb because... he is a droid, and even zap his foe or hit him with acid, Krieg has superior arsenal, and he can blow him up with several bombs and his spear.
Can: Force Hunter
Almost didn't put that thing in because it's overkill, but their logic is the same: both rely on several powerful weapons and are supposed to be invincible in their heads. Except the Hunter is superior to Don Krieg by far. It has an energy shield that can absorb several hits before it goes down, and while it will take damage, the machine is very durable. It can also dish out a lot of punishment, having a plasma arm cannon it can charge, breathing Hellfire which is above any flamethrower, using a chainsaw when Krieg charges with his spear, and being able to fire barrages of missiles. It can survive in low oxygen, so gas bombs are not so effective, its shield regenerates, and while its plasma bolts and machine guns will be easily deflected, several missiles at once are too much for most defenses. But above all else, the Hunter can fly, especially if the sled is destroyed. Krieg is actually a pretty good matchup, and he might be able to destroy the sled. But then he will have to deal with a fast, flying target that has the Biomicrowave Beam...
Can't: Swift Star
Swift is very skilled in close quarter combat, and he is also very intelligent. But he is outmatched against Krieg. He will struggle with the net, get hurt if he goes to punch through the spiked cape, and while he takes several shots to go down, Krieg has more than enough. After weakening Swift enough, one hit with the exploding spear would take him down easily.