TIP: Use One For All Full Cowl Awakening plus engine quirk plus thrusters gear.most rare quirks are often more annoying to use. Common quirks like somnablulist and acid are functional as quirks so dont just assume they are bad.Ice is still okay, if you pair it with something like Acid, OFA, AFO etc. Flame actually sucks, the only good move it has is the awakening move. Note: Many people think that Flame and Ice are good quirks, but you need to be skilled to be able to use them efficiently.Even though Todoroki uses both ultimates in his fight with Izuku Midoriya you can't use both ice and flame ultimates at once.One for all, dark shadow, all for one are probably the most used quirks due to damage.Examples are: Hardening Awakening move: Red Gauntlet Infinite, OFA Awakening, Engine quirk etc. Certain moves will boost movement speed.
Fat absorption is probably one of the most unused quirks.
After maxing quirk control and health, max out stamina, because when you block, the damage points get deducted from your stamina.