Red TeamApparently pretty good with a sickle, as Terezi compliments how many Imps he killed. Thinks he knows Troll biology inside and out, and there's nothing yet to prove him wrong. And he makes himself blood brothers with the Designated Traitor in about twenty seconds. Otherwise, doesn't possess any other particular strengths or abilities yet seen.
Blind, but completely unhampered by it. Can analyze colors and smells, and with possibly significant meaning. Fights like Daredevil and Twoface combined. Explicitly stated that she doesn't have any special mindpowers, but is ridiculously good at duping people and engineering circumstance with blatant head trickery.
Chill enough to put the Imps at least into a mindless stupor, and who knows what else. No known or implied special powers. If Hussie hears about that Juggalo concert, he may be revealed to be an wicked fighter with his juggling clubs, but he hasn't really gotten enough screentime to judge.
Paraplegic, but thanks to some alchemizing, he's about as mobile as anyone can be. Can commune easily and to good effect with at least Imps and Ogres, and knows how to train his fighting slaves, since Skaia probably honors whatever knowledge of collectible cardgames he has.
Extremely potent psychic, able to read thoughts and control people. Now lacks her eightfold sight (which was only shown to be Superman-style xray vision), but who knows what the future holds. Also good at manipulating people, but tends to shoot herself in the foot and engineer more problems in the process. Also enters the game with a treasure horde of awesome items including PSHOOOES, and the Fluorite Octet, the most potentially powerful weapon yet seen. May have some prior knowledge of events thanks to sparring with White Text Guy.
Handy with a chainsaw, and experienced with battling the restless dead and topiaries. Can withstand the light of Alternia's sun, whatever good that does her in worlds beyond. Presumably very helpful lususSprite, compared to the rampaging monsters most of the others have. Has studied Rose's GameFAQs guide, although the whole point the Trolls are around is that apparently the kids screwed something up and Kanaya enters the game following their advice.
Blue TeamSTRONG, like really strong, enough to make just getting out of his house to the first gate a minor annoyance. Can build legions of robots powerful enough to fight him, which means they can probably trounce anything Skaia throws at them for a while. Also apparently knows how to marry robotics to a living body, or that may be Kanaya's doing.
All kinds of plot-knowledge thanks to communing with the dead, and can control them to some degree. May be largely immortal thanks to already being dead. Has absorbed all the knowledge and powers of a Kernelsprite without apparent incident. Now inhabits a robot body, the finest one Equius has made and powerful enough to beat the tar out of Mr Strong himself.
Already well equipped fighter with a life of experience slaying dangerous beasts on long journeys. Otherwise not seen doing much of anything except obsessing over her friends' relationships. Has a Pictionary modus/computer, but as we've seen, its hard to avoid alchemizing such things.
Thinks he's a world-class military strategist, but also a big tool. Like Vriska (and relatedly so), enters the game with a trove of top-tier equipment and weaponry. Cool lusus too. Not much screentime yet.
Lusus that could end the world, Jegus help everyone when it's combined with a Kernel. May also have some good equipment, thanks to being royalty and all. Might also commune with animals.
Extremely powerful psychic, especially telekinesis and eye-lasers. Receives visions and prophecies, and may have discerned all kinds of stuff about Skaia and their opponents with Aradia. God-tier computer hacker (supposedly), in a gameworld where fucking with the game is a key to success; good enough to backtrace White Text Guy and decompile Captcha codes.
Obviously, using their Lusii as prototypes gave their enemies lots of advantages; but with the all-important Black Queen refusing to be frog-ified, all other effects of the prototypings are just minor complications. So once again the question is raised - if this gang of superpowered killing machines couldn't best Skaia or Lord English (or whatever the actual final boss is), what chance do the kids have? Even if the Trolls' failure may actually stem from following the kids' advice thanks to Weird Time Shit, that's just all the more reason to expect failure.