Gwendolyn: The Crazy Old Poro Lady
Gwendolyn is a really senile old lady from the Freljord who lives alone in the mountains, talking to her hallucinations and befriending Poros which she has learned the language of over the years and years of having only them as her company. The people of the Freljord tell their children stories of her passed down through generations, mostly cautionary tales warning them to just avoid her (as she is pretty ill-tempered) Only the Poros truly know her though, and they agree there's something seriously wrong with her.
Passive: Lost Poros Lost Poros appear all over the map and will follow Gwendolyn when she comes close to them. Standing in a brush for a couple seconds will make one of her Poros guard the area, granting vision until an enemy champion scares it off by entering the brush.
Q: Poro Pitch Gwendolyn chucks a Poro in the target direction that deals magic damage over time to the first enemy it hits, slowing their movement speed as it gnaws on their ankles.
W: Poro Parade Gwendolyn summons a wave of Poros that follow her and attack what she attacks until she starts pushing a lane, in which case they will start pushing that lane. Holding down Poro Parade adds all lost Poros following Gwendolyn to the Poro Parade.
E: Popping Poro Gwendolyn tosses a Poro to the target area that explodes into baby Poros on impact, charming nearby enemies. The baby Poros can then be collected as Lost Poros.
R: Poro King Summons the Poro King to drop down on the target area, knocking enemies back and dealing massive damage. The Poro King then pushes that lane and attacks enemies, summoning Lost Poros to his side to help with the assault.