technique: bloodbending. you can control with the water inside them.
character: amon
@solneversays

technique : ice breath. you can use your breaths to freeze things.
character: kya
@Yasiloooo

technique: fire jet. you can use fire bending of your foot to fly across the sky.
character: zuko
@farawayfromfair

technique: energy bending. it's a technique that only avatars can master.
character: aang
@lulusutar88

technique: lightning redirection. it's a firebending technique that based on waterbending, since you said you like both of the elements.
character: iroh II (zuko's grandchild)
@cereall_killer

technique: fire breath. you generate fire with your mouth just like a dragon.
character: azula
@Voodoogast

technique: fire manipulation. you can control the temperature without a real flame.
character: wan (1st avatar)
@dark_myself

technique: metalbending. controling and shaping metal is how metalbending works.
character: kuvira
@dystopiaism

technique: ice bending. the power of turning water into ice and controlling it.
character: katara
@tiredfirefly

technique: blue fire. blue fire is a perfect fire that comes from a top level of mastering waterbending.
character: azula
@chsluvs

technique: air shield. it's a way to protect yourself and it's a kind of negative jing.
character: tenzin
@Turquoise_am

technique: sound bending. you can control vibrations of air to generate or change a sound.
character : yangchen
@Sepid_silver777

technique: breathe control. you can take off the air in creatures' lung and make them choke.
character: zaheer
@mikimikiisher5171

technique: plantbending. you can control plants through the water in them.
character: kya
@windzangool

technique: lava-bending. you can control smooth and hot earth. you can also turn solid earth to lava.
character: bolin
@AdifferentversionofAS

technique: combustionbending. you can explode things with your mind.
character: p'li
@zk520l

technique: fire stepping. it's a way of flying with little parts of fire under your feet.
character: asami
@InTheFarDistance

technique: sand bending. controlling sand and little parts of earth.
character: kyoshi
@azkabanprisowner

technique: heat manipulation. controlling the temperature.
character: zuko
@Mocaccino_04

technique: eaeth armor. you can cover your body with a layer of earth to protect yourself.
character: toph
@abrokenfantasy

technique: blue fire. you can generate super hot and perfect fire.
character: azula
@yatura_izuku