Champ Idea Kae the Beastial Bound

So recently i have seen and heard a lot if discussions about a champ that has a "pet" similar to malzahar, but instead you make the whole champions kit surround the pet and said pet would be permanent. so this is my crack at an idea for a champion and i even back him up with a little lore.

Lore: Kae is a revered traveling hunter from ionia who in his travels to Mt. Targon decided one early morning to go hunting to restock his survival rations. He awoke before the sun did geared up for a hunt and he lifted his bow to get his meal ticket for the week. As Kae came to a riverfront and the sun just began to peek over Mt. Targon. he leaned down to fill his canteen from the river when he saw what he thought was a Buck. the biggest he had seen or heard of in fact just right there drinking from the other side of the river. In a calmed manner he slowly drew an arrow from quiver and knocked an arrow then drew it back to his chin and as the sun seemed to climb faster Kae had felt something he never had which he ignored. As he breathed out to release his arrow a half second turned to a millennia for Kae and the deer raised its head and stared Kae in the eye with eyes of glowing green energy. Kae knew what he felt now was regret but it was too late for his fingers already left the string and the arrow shot across the river as it did Kae's spirit left his body with it and he was channeled into the arrow. Kae blacked out. when he awoke just moments later he tried to walk but soon began to panic when he discovered he was now in the very deer he wanted to kill. shortly Kae's soul was snapped back to his own body when it was he rose up, and the arrow was in his hand. he then heard echos from Mt. Targon; "we gift you this awakening and a second chance" Kae looked towards the peek and knew what he had to do. he looked for the ram he wanted to kill and there it was staring him down once again. something triggered in Kae and he ran forward drawing an arrow and firing the Deer fled. and this is when Kae biggest hunt began, for 9 days he had tracked the Deer deeper and further up the mountain, endlessly his determination to chase the Deer greater than is exhaustion and hunger. Kae finally had the beast cornered with nothing but his knife he lunged forward and at that exact moment his spirit left his body again this time he merely rose above his body and the spirit this deer also rose. Kae then heard the voices and echos once again; "I am your guardian, Phu" the deer and the mountains echos spoke, "I chose you to protect me in the uncertain times to come you have been connected to me from birth and we will live together and die together, i am your guardian as you are mine and now i bestow the knowledge of our bond unto you." a beam of green light crashed down engulfing the 2. when it stopped the two were back at the river where they started and now Phu took a new form. the shape of a green astral Deer. Kae observed and smiled as Phu levitated around Kae, kae began to notice he could see everything that phu could and when phu looked at him he could see his own eyes glowing the same green energy as before.

Kae age: 18 class: marksman, secondary assassin

Abilities

Passive: Tenacious Hunter/Beastial Bond

each time Kae takes damage The gains a stack of tenacious hunter granting him 5% armor, magic resist, and health regen max 6 stacks

Kae starts with 1 point in his R.

Kae star

Q: Exploding Tip your next auto attack deals 110/120/130/140/150% of your AD In area of effect that inflicts grievous wounds.

W: bound Phu Bounds to a location slowing enemies he lands on and dealing damage.

E: PHU! phu dashes forward and headbuts the first enemy in his way knocking them back slightly and dealing damage

R: Beastial Bonding Control Phu using R Phu cannot die His auto attacks deal 30/40/50/60% of Kaes AD Phu will Auto Target

At level 6 you gain bonding shot which draws Phu into Kae's arrow and fires forward, the first enemy champion becomes possessed by Phu and you can control of them for 8/9/10 seconds using your R.

Side notes: this was my first time creating my own champion i thought it would be pretty cool and the idea seems pretty original in terms of controlling your pet. i also like the kit i came up with for him and i hope to hear some feedback.