World setting:
### The World of Elemental Marbles
#### Overview
In this world, everyone is born with an elemental marble granting control over a specific element. These marbles influence culture, economy, and power structures.
#### The Eight Elemental Marbles
1. **Water Marble**: Control water in various forms, create barriers, and offensive waves.
2. **Ice Marble**: Create and manipulate ice, form defensive structures.
3. **Steam Marble**: Control steam, create clouds to obscure vision and disorient enemies.
4. **Fire Marble**: Create and control fire, generate intense heat, and flames.
5. **Lava Marble**: Control and create lava, transform ground, and create lava flows.
6. **Air Marble**: Control air currents, create wind barriers, gusts, and air blades.
7. **Earth Marble**: Manipulate solid earth, create barriers, fissures, and control rocks.
8. **Lightning Marble**: Control and generate lightning, direct strikes, and create electrical fields.
Marbles are embedded in the right hand and emerge at age 12.
#### Primary Forms
- **Primary Forms**: Users of the dominant marbles (Lightning, Lava, Air) and "Legendary 8s" can transform into elemental entities.
- **Lightning Primary Form**: Becomes a ball of lightning, moves at high speed, and generates electrical fields.
- **Lava Primary Form**: Transforms into molten lava, flows, creates barriers, and intense heat.
- **Air Primary Form**: Turns into air itself.
- **Legendary 8 Primary Form**: Eyes turn white and blue, marbles spin around wrists, creating a blur of colors. Completed form floats, with white glowing eyes and black intangible wrist rings.
#### Society and Power Dynamics
- **Dominant Marbles**: Lightning, Lava, and Air are the most powerful. Possessors of all three are "trio users."
- **Legendary 8s**: Rare individuals mastering all eight marbles, revered for their unmatched power.
This world mirrors Earth in geography.