Volibear mini-rework

So, isn't very good. his early game is pretty decent and in mid game he can burst people quite easily, but i want to propose a few small changes to push him back into the spotlight which Draven enjoys. so, here are a few suggestions for a mini rework for my main boy Voli!

Q: So looking at his walking animation and his Q sprinting animation, it would look nicer/smoother with a small almost leap forward down on all four and that is the first thing. a small dash after pressing Q in the direction he's facing. with this dash he could jump over small walls, and become more mobile (seeing as every f'ing champion has a dash nowadays, it's just to help him get surprise fling auto attacks in the laning phase. ( ) but i digress

W: His W is really simple (excluding the math) by auto attacking any unit you get a bit more attack-speed capping at 3 stacks. at 3 stacks you get the ability to bite an enemy dealing damage scaling with how low the enemy is hp wise and how much hp you have. but what if you could charge it? let's say with 1000HP and the enemy at full health the bite if simply pressed did about 150dmg, then holding it down 0.1 - 0.6 second would deal 170dmg and fully charging it 0.7 second would deal 190dmg. it means that in fights you get the choice to hold down a button and getting more execute damage to ensure a kill or kill an enemy faster, or quickly biting them lowering their health at the end of a trade or in an attempt to let you're not so fed ADC get a kill under his belt (because they totally need that extra 300g to spend on lethality instead of crit like they should) :)

R: i know i skipped E, but his E sucks, moving on. the idea i had is that non of his abilities really should cost mana, he runs/bites and screams (doesn't seem that magical to me) so instead his R could take the role of his mana bar. every couple of second (let's say 8) he get's a stack capping at 6--9-12 stacks. by pressing R (toggle ability) he empowers his AA's with this lightning consuming a stack for each auto attack but applying a more powerful lightning than before (current R at rank 3: 155AP damage - Potential R at rank 3: 180AP damage) this would allow Voli to trade more efficiently as he doesn't mean to throw away his R and have his enemy run away, but rather he can save his R for whenever he want's it. this would just overall make his R more powerful, make him scarier in lane and increasing his wave clear.