Izuku Midoriya
X-Ray:You can use your eyes to see through solid matter. The drawback is that it makes you dizzy after a while.
Hero course, hero name:vision.Katsuki Bakugo
Youth Hose:You can spray a special-liquid from your hands that temporarily reduces a person's appearance to look like their younger self. The drawback is that if you use it too much, it'll start taking an effect on you.
Hero course, hero name:rewind.Shoto Todoroki
Dragon Tail: You have the tail of a dragon. That's it, sorry. At least there's no drawbacks.
Management courseFumikage Tokoyami
Inferno: You can generate and manipulate any type of flames and shape it into a variety of attacks. Like most fire quirks, making the flames too hot can burn you.
Hero course, hero name:flaming fury.Hanta Sero
Volcano: You can create and control lava, volcanic rock, and ash. Your resistance to the lava can wear off after too long
Hero course, hero name:lava girl/boy/goddex (came up with goddex on the spot)Ejiro Kirishima
Water Balloon: You can use water vapor in the air and form it into elastic balloons made of water. It gives you frostbite after a while due to the air suddenly condensing.
Support courseDenki Kaminari
Teleportation: You can disappear and reappear anywhere around 300 feet. Any more than that and you can lose control of where you're teleporting.
Hero course, hero name:the vanisher.Mashirao Ojiro
Drill Horn: You have a drill on your forehead that's capable of digging through solid matter.it gives you a headache after long.
Hero course, hero name:the excavator.Tenya Iida
Ice dragon: You have the characteristics of a dragon and can breathe ice. You can't be in temperatures that are too warm without something to cool you.
Hero course, Hero name:frost fury (not like adopt me if I see any "oMg ADoPt mE" comments I'm blocking you/hj)Yuga Aoyama
Ele-Squirrel: You have the characteristics of a squirrel while having electrokinetic abilities. If you overuse it, it can shock your brain and you'll start acting like a squirrel.
Hero course, hero name:electro-squirrel (like your quirk)Hiryu Rin
Doppelgänger: You can use kinetic energy to clone yourself multiple times. It gives you a bit of an existential crisis, though.
General studiesNeito Monoma
Mud: You can manipulate and generate mud. But mud dries fast.
Hero course:hero name:dust devilJuzo Honenuki
Hover: You have the power of flight, allowing you to fly leisurely through midair. You can lose control after a while, though.
Hero course:hero name:the floaterTetsuTetsu TetsuTetsu
Velocity: You can steal the kinetic energy from people and objects in motion to gain more speed. Problem is, you'll feel the fatigue from using your own energy after your third-party energy source is gone.
Hero course, hero name:overdriveKosei Tsuburaba
Ultraviolet: You can absorb and channel any type of radiation into ultraviolet rays and can control the intensity. Too much UV radiation can cause heatstroke
Not in UA :(Nirengeki Shoda
Multi-Jump:You can jump multiple times in midair. You can lose you balance in midair at any time.
Management courseShihai Kuroiro
Tenta-Hair: Your hair is made up of tentacles. There's no drawback.
Hero course, hero name:calimari (courtesy of midnight)Sen Kaibara
Metal Blade: You can turn your arms into sharp metallic blades. There aren't any drawbacks.
Hero course, hero name:the swordsmasterYosetsu Awase
Oil: You can manipulate and create oil, it becomes increasingly harder to control over time.
Not in UA :(Tamaki Amajiki
Leaf Blade: Your hair is made up of a compound similar to leaves and you're able to pluck one and bend it into a blade of any shape or size. Like mineta, plucking too many can cause bleeding from the head.
Hero course, Hero name:autumn.Mirio Togata
Points: You can earn points by doing tasks to improve your physical capabilities and powers. It's hard to do tasks mid-combat, though.
Support course and hero course, a hybrid, if you may, I can't think of a hero nameHitoshi Shinsou
Video Vision:You can replay any video via projection as long as you have seen it.
General studies