Teemo.

Take Blitzcrank.

Now replace his W with Garen's E.

Now not only are you getting gripped and knocked up and silenced, but you have a robot spinning on your face while you can't escape.

Passive: Original Thresh Passive (Caused game to lag and maybe crash)
Singed's and Lux's /laugh. Is a toggle.
Original Smokescreen (Caused FPS to drop)
Mini Vayne Ult (Causes lag)
Karthus Ult (Causes lag)

Q - physical damage around you in a circle, deals more damage the farther away from you the enemies are
W - next attack deals bonus damage and slows
E - aoe pull and passive armor pen
R - true damage execute with resets

q - Kill target ally minion
w - instantly grow to 10x your size
e - shoot 6 ghosts that hover over nearby minions
r - stop your teams minions from spawning for 1 minute

Pingu The demon penguin

Passive: Slide to Safety! Taking damage increases Pingu's move speed by 5/10/15%
Q: Fish Slahp! Pingu slaps a target dealing (AP%+AD%) True damage and stuns the target for 1/1.5/2/2.5/3 seconds
W: Penguin Salute! Pingu Salutes and restores 5/10/15/20/25% of his max hp and mana over 3 seconds, All nearby enemies have their attack and move speed reduced by 5/10/15/20/25%
E: Waddle! Pingu increases his movement speed and attack speed by 5/10/15/20/25% and deals 50% splash damage to nearby targets which are then blinded by the majestic dance of pingu
R: You Mad Bro? Pingu stuns all enemy champions for 1/2/3 seconds regardless of distance. If an enemy is killed while stunned the cool down is reduced by half.

Passive: a Daruis bleed that increases in damage by x AP ratio and AD ratio can have max of 5 stacks
Q: Shaco's blink with longer flash blink distance and 10sec invisible, instant cast
W: AoE cone that damages and stuns all targets for x seconds
E: Movement speed boost that increase speed by 50/60/70/80/90% and removes all slows
R: Lux ultimate, instant cast full global range, scales by x AP ratio and AD ratio

Tinker, The Maniacal Mechanic

Passive: (Coin Flip) Tinker tosses a 2 sided coin on spell cast Heads effects allies / Tails enemies
Q: (Destruction) Tinker destroyers 1 item from each champion on spell cast.
W: (Veil) Tinker shields and stealths each champion
E: (Fix It!) Tinker restores missing resources to each champion
R: (Failed Prototype) Tinker teleports each champion to fountain