Acerbus, The jungle creature

so this idea is for an assassin, animal like champion, who would play in the jungle and uses mana.

The magic and energy in summoners rift has changed acerbus from a simple, jungle dwelling animal, burrowing his way around endless battles, to a large intelligent creature. for years he watched from the sidelines, hidden away, as champions fought in his beautiful home, and destroyed it. He vowed vengeance, and he would take back summoners rift for all the creatures living in it. He would rise above the rest and become the alpha of summoners rift.

Passive: **Alpha male ** every time acerbus kills a large monster, epic monster or champion he gains a stack of alpha, growing in strength, increasing and adding affects to his abilities. (1 stack for large monster or champion kill assist, 2 for epic monster or champion kill). acerbus loses half of his stacks upon death. he can have a maximum of 100 stacks

Q:** Claw swipes** acerbus strikes 3 times in a cone in front of him. First with his right hand, then after a pause, with his left, then after a pause with both. once he activates the ability, all the strikes will hit, unless he is hard cc'd. he can move between the strikes. deals base amount of ad+( %ad) + amount of alpha stacks

W: Jungle Knowledge toggle: when toggled off, acerbus gains 1% movement speed for every 2 stacks of alpha he has. When toggled on he loses the move speed boost, but at the cost of 50/45/40/35/30 mana per second, acerbus has the ability to find pathways and tunnels, allowing him to move through walls and impassable terrain. He can only go through a wall once every 10 seconds, and while inside a wall he cannot use abilities, items, summoner spells or recall. while enemies can't see him while he is in a wall, skillshots that pass through him while he is in a wall can still damage him. if he runs out of mana while inside a wall, he will be knocked out and appear on the closest side he was on, and will be stunned for 1 second.

E: Ferocious leap when activated acerbus leaps to target location, fearing enemies around his landing spot. the fear length depend on his alpha stacks. (10 or less, no fear; 10-20 0.5 seconds; 20-30 1 second; 30-40 1.5 seconds; 40-50 2 seconds; 50-70 2.5 seconds; 70-100 3 seconds)

R: Underground Burrows After a 1 second cast time, acerbus burrows his way underground and his movespeed is increased to 450 while underground. he can stay underground for (5, 7, 10 seconds). acerbus can move while underground, leaving a visible burrow trail behind him (like bugs bunny). when underground he is un-targetable, but can be affected by aoe damage and cc (like braums ult or karma's mantra'd q). while underground acerbus cannot use abilities, but he can use summoner spells. He can activate his ultimate again to leap behind a NEARBY enemy and slash them in their blind spot. this slash deals 5x alpha stacks of true damage.

I'd like to know what you guys think of the champ i thought up while daydreaming at work