Pterana: The Guardian of the Extinct

Pterano was found by Ezreal as he was hunting for treasure in the uncharted Fyrone Flats, and he stumbled upon a magnificent find. He found a large fossil that he soon brought to Shurima to get appraised by Zilean. Obsessed with time, Zilean revived the fossil, which turned out to be a beautiful black, winged Dinosaur with strange markings along its body. Zilean instantly recognized the symbols from the race that destroyed his home, Urtistan. Zilean, wanting to destroy the demon, Zilean tried to destroy it. However, Ezreal intervened, seeing as though it was one of his most prized finds... and his "daughter". The Dinosaur, clueless of its savage past and unsure of its future, the creature found joy living in the present with her two daddies. Ezreal brought Pterana to the Field of Justice, while he searched for more of her kind in Fyrone.

I wanted to make a support/tank champion that could play solo top, bottom support, and possibly AP mid. She is a Melee champion (150 Range), who scratches enemies with her claws.

Health: 435 (+90) Health Regen: 6.5 (+0.6) Mana: 250 (+50) Mana Regen: 6.5 (+0.6) Range: 150 (Melee) Attack Damage: 45 (+3) Attack Speed: .625 (+1.5%) Armor: 18 (+3.5) Magic Resistance: 30 (+1.25) Movement Speed: 325

Passive: Pterana's abilities mark her targets with Endangered. This reduce the target's defenses (5/10/15 Armor and 5/10/15 Magic Resist) for 3 seconds.

Q: Dinabite: Pterana's next basic attack bites her target that does physical damage equal to her AD, plus, it heals her for (50% AP). This resets her autoattack. (Cost: 50/45/40/35/30 Mana)

W: Sinkhole: Pterana slams the ground and slows all nearby enemies within a (400 radius) sinkhole that slows enemies (20/30/40/50%) and deals magic damage (20/30/40/50/60% AP) on impact. (Cost: 70 Mana)

E: Guardian's Shout: Pterana heals all nearby allied champions for 30 / 40 / 50 / 60 / 70 (+ 20% AP) and silences enemies for 1/1.25/1.5/1.75/2 seconds

R: Sauring: Pterana grabs an enemy (150 Range) and takes them to the skies, the enemy will not be able to attack for this duration. She can then travel a long distance (5400 Range) to slam the foe into the ground doing 200 / 300 / 400 physical damage (+100% AP). (Cost: 120 Mana)

I wanted to do three things with this champion.

1. I wanted to introduce more lore with this Champion, including Ezreal being a father with Zilean.
2. I wanted to introduce another race, the one that destroyed Urtistan. This could lead to several different dinosaurs stomping the rift with different powers and different stories.
3. I wanted to introduce a female champion that wasn't a woman. Of course, there are female champions that turn into animals, insects, etc. I didn't want a champion that didn't have big boobs, but rather, I wanted a champion that didn't look human at all.

What do you think about this champion? I will edit it if you leave comments below. Please Upvote!