Here's a quick over view of how one would look, or how I would do it. I'm going to use DBZ names for abilities, but they would of course be changed due to copyright. I am just using the names and words to make this easier to do. Feel free to take it and add things or take things away. This is for the community to get a baseline or something. Take it, delete it, hate it, love it. This was all random and at a moments notice I decided I'd make this based on this topic. Numbers may be off, but feel free to take and change. Your choice. Enjoy!
Health: 500-2300 Health Regen: 7-21
Mana: 300-1100 Mana Regen: 5-18
Attack Damage: 60-120 Attack Speed: 0.63-1
Armor: 27-85 Magic Resist: 32.1-53.4
Melee/Range: 125/600 Movement Speed: 355
Primary Role: Fighter Secondary Role: Tank
Passive: *Saiyan Blood- *
The closer the Saiyan gets to death, the stronger they are. (Of course, it is when they die and or almost die according to TFS and a few sources but close enough xD).
For every 25% missing maximum health the Saiyan gains 5% Bonus Attack Speed, 2% AD and AP bonus to abilities. Armor and Magic resist increase by 10.
Q Insant Transmission:
Channeling for 0.25 seconds the Saiyan then reappears a distance away. Enemies within 400 units of where the Saiyan spawns is hit with a Ki blast for 30/50/70/90/110 (+50% AP) magic damage.
Cost: 90
Cooldown: 25s
Range: Anywhere within 1000 unit radius around them.
W Flurry/Barrage:
Melee-Flurry: Targeting enemy champion the Saiyan attacks them a total of 5 times dealing each hit 10/15/20/25/30 (+40% AD) physical damage.
Range-Barrage: Targeting a 400 unit radius area the Saiyan blasts it damaging enemies within the radius 20/30/40/50/60 (+40% AP) 3 times. Magic Damage.
Cost: 100
Cooldown: 20/17/15/12/9s
Range: The melee target range is within 600 unit radius around the saiyan. The radius/range in which he/she can cast is 800 unit radius around them.
E Dragon's Fist/Special Beam Cannon:
Melee-Dragon's Fist: The Saiyan charges his fists and slams the ground before him rendering it. Slowing enemies by 10/13/15/17/20% for 3s and damaging those within the radius by 50/70/90/110/150 (+60% AD) physical damage.
Range-Special Beam Cannon: The Saiyan charges his power. The longer they charge it the farther it goes and the more power it does. Damaging all enemies it hits. Minimum damage 20/30/40/50/60 (+20% AP) at max charge and damage it does 60/90/130/150/170 (+60% AP) magic damage.
Cost: 120
Cooldown: 20/17/15/13/10s
Range: Melee range is a cone that extends in a similar way to Talon's E (It is his E right? Rake.) except slightly farther reach. The Ranged attack extends to a max range of 1000 (Much like Varus's Q) except instead of it being a radius thing it is a skillshot that starts to charge up and extend while the saiyan charges the attack. Much like Varus's Q they cannot take action during this time except to release the attack. The attack starts at 400 range and charges up from there.
R Saiyan Mode:
Unlocking this allows the Saiyan to transform into their Saiyan mode granting them increased movement speed and changing them into a ranged fighter among increased health and mana until death.
Passively: For each champion kill the Saiyan gains benefits. Max of 20 stacks. Stacks are halved upon death.
2 Armor and Magic resist.
10 Health
50 Mana
2 AD and AP
Active: Grants the Saiyan 200/300/400 more Health and Mana. Increase their movement speed by 5/10/15%.
When in Saiyan mode they "Fly" and when not they run normally.
Cost: 200
Cooldown: 130s Starts when they die or it is deactivated.