Gegan the Dragon Tamer
Lore: He tames dragons. That's all I can think of. He has one particular dragon named Vernier though, which they are very close.
Physics: Gegan is the main character, Vernier is his pet. They both have passives and their own abilities. Gegan is melee while Vernier has 600 attack range. She will always auto attack enemies that are in range or that Gegan is attacking. She will also try to keep her distance from enemies.
Passive: Duo Mode: When Gegan dies, Vernier will become the main character for 10 seconds. After which, Gegan will respawn with half HP next to her. This will also occur vise versa. Vernier's basic attacks deal 0.35 of Gegan's AP.
Q: Jet Stream: Gegan claps his hands together like wings, firing a missile that explodes at target location or when it hits an enemy champion, dealing magic damage. If this ability hits an enemy, Vernier will dash a short distance (if she is out of range) and fire her own Jet Stream at the same area or on the enemy champion if it hits that champion, dealing reduced magic damage and slowing them for 2 seconds.
W: Turbulence: Gegan thrusts his arms forward, firing a wall of wind in a cone, dealing damage and pushing all enemies hit back a little. If this ability hits an enemy, Vernier will fire her own Turbulence from her current position at the same area, dealing reduced magic damage, but pushing further.
E: Air Bubble: Varying effects depending who he casts it on. Cast on self: Shields himself and grants a movement speed buff for a few seconds. Cast on Vernier: Charges her with pressure that scales with AP. Cast on enemy: Fires a small ball of pressure at the target, dealing magic damage and stunning them briefly. If Vernier has been charged, she unleashes all pressure inside her at that enemy, dealing damage that scales with how much she was gorged. If her pressure is high enough, it will stun the target for a longer duration.
R: Dragonic Hurricane: Creates a massive hurricane around Gegan, dealing magic damage per second for 7 seconds. Damage increases greatly if they are closer to Gegan in the storm. If an enemy is inside the storm, they are slowed greatly and are unable to leave it. While inside the storm, Vernier gains a massive movement speed buff and attacks much faster.