Fake Champion Info: Poro King
Poro King is a front line bruiser, support who excels at crowd controlling, enemies and dealing damage to multiple targets.
Role: Support, Fighter
Meta: Support
Passive: Tracking Poros
Poro King periodically summons an unattackble Poro, to track down nearby enemies, revealing them for 3 seconds on the map. Each Poro lasts for 15 seconds.
Q- Snowball, 10/9/8/7/6 Second Cooldown, 45/50/55/60/65 Mana
Poro King launches a giant snowball at the enemy, dealing 100/105/110/115/120 (85% Ability Power) magic damage, and stunning them for 1 second, then slowing them by 30%/35%/40%/45%/50% for 1/1.2/1.3/1.4/1.5 seconds after the initial stun as well as splitting into smaller snowballs to hit all nearby enemies for half the damage deal. Slows for a flat 20% but does not stun
W- Snow Form, 12/11/10/9/8 Second Cooldown, 80/85/90/95/100 Mana
Poro King turns himself into a giant clump of snow after 1.5 seconds, and charges in a direction, dealing 70/75/80/85/90 (85% Ability Power) to all enemies hit with the charge, and slowing them by 20%/25%/30%/35%/40%. Poro King cannot be CC'd during this time
E- Rejuvenating Crown Crystals, 15/14/13/12/11 Second Cooldown, 60/70/80/90/100 Mana
Poro King nourishes the nearest ally with his magical Crystals embedded in his crown, healing them for 180/210/270/290/320 (50% Ability Power) and reducing their cooldowns by 1 second.
R- March of the Poros, 113/100/95 Second Cooldown, 100 Mana
Poro King summons a stampede of Poros in a direction, dealing 312-678 (55% Ability Power) magic damage to all enemies caught within the stampede and slowing them by 50% over 5 seconds.
Poro King works well with:

Jarvan IV's ultimate, Cataclysm, can clump enemies up so they are ensured to be hit by March of the Poros.

Volibear's ultimate, Thunder Claws, can a bit of extra damage to March of the Poros as well as his Rolling Thunder making it easier for Poro King to land his Q.

Gnar's ultimate, GNAR!, can clump enemies up to be hit by March of the Poros.

Gragas's E, Body Slam, allows for Poro King to follow up with his W for a mini wombo.
Poro King is weak against:

Yasuo's Windwall IS capable of blocking Poro King's Snowball, making almost useless against him.

Cho'gath's knockup+silence combo can prevent Poro King from using his W to escape.

Fizz's E, Playful/Trickster, can completely negate any effects from Snowball.

Tahm Kench's extremely high Magic Resist scaling allows him to easily live through the damage Poro King has to offer.
Poro King is strong against:

Poro King's Q allows him to kite Darius for days on end, as well as his W letting him avoid Darius's E.

Jinx's low mobility and squishyness makes her vulnerable to Poro King's W, considering he can't be crowd controlled during that time.

Mordekaiser's extremely slow speed leaves him vulnerable to Poro King's Q and W.

Since Poro King has the inability to be crowd controlled during his W, it makes Twisted Fate's Red and Yellow cards' CC useless.
Starting Items

Essential Items

Offensive Items

Defensive Items

Mage Tank Build

Full AP Build

Mage Bruiser Build

Full Tank Build
or 
Support Build

This whole concept took me fucking 4 hours to come up with. >.<