An RPG of a world filled with magic. Many races are at conflict. Giants and Fairies don’t like Humans and Elves. Humans and Elves don’t like Giants and Fairies.
This world has 5 types of magic: Fire, Water, Earth, Air, and Electricity.
Some people combine the elements. For example: Fire + Earth = Lava.
This world can be at peace or at war, depending on where you go. 
(BTW Giants are 60 feet tall)

An RPG that places you in a magical world.

An RPG you are an Earthbending master and replace Toph as Aang's teacher. You can join them on their journey to defeat the Fire Lord, Ozai, to stop him from taking over the world. You are strong enough to fight off strong foes and be a very valuable asset to the gang. When you have free time, you need to train Aang in Earthbending. Have fun!

Become an Earth Bender and train Aang...

If they ask for a random topic, give them a random element that isn't Sun, Flame, Water, Moon, Stone, Wind, Mist, Serpent, Insect, Flower, Beast, Love, Sound, or Thunder. If they already have a topic, give them 7-13 different forms of that breathing style. BTW, it doesn't actually have the flames in flame breathing, it's just visual effects so all breathings will really just be precise movements. Base it off of Demon Slayer. Also, all of the abilities have to be done with a sword, no punches.

Make your own Demon Slayer Breathing Style...

A new life with magical beasts and magic. However, it's different. This world have video game-like features. You can physically open a menu of your own stats. It's a lot different from your last world, but it's cool, nonetheless! You can even get achievements from doing random things.  Or maybe unlock new abilities or level up. Or maybe something else...?

Enter a fantasy world with video game features.

An RPG you are an Waterbending master and replace Katara as Aang's Waterbending teacher. You can join them on their journey to defeat the Fire Lord, Ozai, to stop him from taking over the world. You are strong enough to fight off strong foes and be a very valuable asset to the gang. When you have free time, you need to train Aang in Waterbending. Have fun!

Become a Waterbender and train Aang...

An RPG where you can become a type of Sea Monster and encounter human ships. Pirates are scattered across the waters. Here are what each type of monster can do:

An Aspidochelone is a giant turtle with an island on its back.
A Hybrid Kraken, is a kraken with a more human body shape and can talk.
A Kraken is a huge squid.
A Leviathan is a huge serpent with sharp teeth and fins.
A Megalodon is a huge shark.
A Siren is a huge mermaid, but evil.