It's time for a Death Battttlllleeeee!!! (seriously, I don't know if it should be a death battle, jonny. A KO battle would make more sense. I don't think people want to see their characters decapitated or anything).
Name: Greg Dickson
Comic: Don't Be A Hero
Character: Gemini
Info: Gemini is like a jack-of-all-trades with her clawed ball and chain device, Valhalla. Gemini can attach Valhalla to her opponents to vaporize them into essence, which contains their powers that she can use for herself. She stores Valhalla in the palm of her bionic arm [the ball can shrink and grow, kind of like a pokeball] and she can shoot it at her foes (the claws grip her opponent, it activates on a few second timer, then BAM! End of opponent). She also absorbs the fighting knowledge of her opponents to become proficient in their arts. She doesn't have that many abilities yet in the comic, but she has two so far.
1 - Spear: A chain exits from one side of Valhalla with a glowing green spearhead attached. The chain stiffens into a handle, with the ball on the back end of the chain, and the spear on the front. She can fight regularly with it. She can loosen the slack on the chain and wield it like a bladed whip, and she can even throw it, making it resemble a green arrow of doom.
2- Duoblicate: I guess it's a little bit of a spoiler, but by my next page, I'll be hinting on it anyways. She can clone herself once, giving herself an extra teammate on the battlefield. Two is always better than one!
Gemini also possesses a gauntlet and platform boots that she can magnetize by thought (well, the ribbons in her hair allow her to form a telepathic communication with her own technology), allowing her to grip, walk on metal surfaces with ease, as well as using her gauntlet to pull in metal objects from a distance (sometimes disarming foes), as well as shooting metal objects forward with incredible force, which is how she fires Valhalla at opponents.
Gemini's passive strengths is that she's a cunning strategist, and has excellent acrobatics and stamina. Weaknesses? She's doesn't possess extreme strength or durability like many heroes (well, with these abilities anyway). She's also a little overconfident in herself, which occasionally makes her fumble with mistakes. .
Really, she's more in line with a Megaman/Cardcaptor Sakura-style fighter, selecting her abilities carefully to get at a leg up on her opponents.