Tournament of elements

This is an unnamed world that is inhabited by a wide array of creatures who live in multiple different biomes. There are beaches, mountain ranges and even floating islands with a city that acts like a hub that connects them all together and allows different creatures to meet each other and to travel to other biomes.In this world, it is common to see different creatures bending their lands elements. Although most creatures stay in their respected biome, it is fairly common to see creatures of different elements living in the same biome (e.g., a fire elemental living in the forest biome or an ice elemental living in the mountains).  

Every year, the world has a fighting tournament to win a large crystal that embodies all the elements, whichever biome wins gets to use the crystal to help their biome for the rest of the year, such as healing injuries, helping crops grow etc. At the end of the year, the crystal gets returned and the tournament starts again. This is the 53rd annual tournament. 

Here is an introduction to the characters who are competing in this year's tournament: 

Apollo

Apollo is a young dragon with the ability to control fire. He lives in the volcanic biome, where he trains with his brother daily to try and control his elemental powers as he struggles to control them. Therefore, he trains with his dual duo swords, so he does not have to rely on his powers. Due to being a dragon, a lot of the creatures expect a lot out of him as dragons are some of the best controllers of their element, which often leads to him overworking himself to try and meet those expectations and feeling like he is letting everyone down. Despite this, he is a loyal and kindhearted fighter who entered this tournament to prove that he is more than just his element. 

Adrian

Adrian is a siren who tries to act serious around other people but can’t help pranking others and splashing others when they walk down the beach he lives by. Despite being mischievous, he is a natural leader who helps to coordinate other creatures if needed so he is often well respected. He has the ability to control the element of water which he uses in his pranks and can even use his element to carry objects around and travel on land as he can't stay out of water for long without drying up. He uses his spear for long range attacks and to protect himself. It is his prized possession as he made it himself. 

Thea

Thea is an orc who controls the element of earth. She is known to be serious and very protective of the people she cares about due to losing someone dear to her when she was a child. She always blames herself if anyone gets hurt, even if she wasn't even there when it occurred. Thea is often seen as the 'mom' of whatever group she is travelling with, scolding them if needed but always making sure they are cared for and even helping train people in self-defense. She cares deeply for Adrian, seeing him as a younger brother and she is the reason Adrian tries to be serious in most situations as he wants to be like her to help his people. Her main weapon is her hammer, which she uses alongside her element in battle to create blockades or send out shockwaves.

Rai

Rai is a siren-like creature whose people have evolved to live on land rather than water. They all took on different attributes that best suited them before migrating to land and Rai’s were an electric eel so his element is lightning/electricity. He can still swim underwater; he just chooses not to due to his element. He is an adventurer, traveling to different biomes with his best friend Juniper, a frost giant, where he invents different machines or gadgets to try and help the people or creatures he encounters. Some inventions work, others do not and end up blowing up, but this doesn't deter him as he wants to prove he is capable. One of his successful inventions is the gun he carries around with him, which uses his electricity to charge and can shoot small, concentrated shots of electricity or can be fully charged and act like a taser, shooting a beam that can stun opponents, although he won't use it unless absolutely necessary. He wasn't originally in the tournament but snuck in so he could prove himself. 

zephyr

Zephyr is a harpy who commands the element of air. She is known to be quite strict and follows any rules or orders she is given. She is always the first to offer to be a bodyguard for someone if they need it or to guard places of importance. Unfortunately, due to this, she struggles to make friends with people outside of her jobs and she often ends up stopping herself beforehand as she is worried, she would come off as weird or clingy. Luckily, she ended up becoming friends with Apollo after offering to be a bodyguard for him and although he refused the offer, they ended up talking anyway and found out they both had similar struggles and became each other's support system. She entered the tournament in hopes that she can make more friends along the way even if she wins or loses. Her weapon of choice is a rapier sword. 

How well do you think they incorporate their element and how well do you think they would work in a fighting game?