New Champion idea: Ohraa the mediator

This champion came to me while thinking about the lore in league, since there is a lot of champions that exist all around Runeterra, and since riot does't actually have a lore, i was thinking there should be something or someone that helped in the creation of the lore. Maybe all of the champions didnt live at the same time, considering they are "legends" it can be totally possible that someone made the whole idea a reality, someone not from Runeterra, that wanted it all to happen. That's where Ohraa comes in, Ohraa is not from Runeterra, his abilities are psychic, and at the moment i haven't given the details of his lore much thought, but i have given his abilities some thought. Here's what Ive come up with.

Champion name: OHRAA Primary Role: FIGHTER Secondary Role: SUPPORT the mediator(i think the mediator part can be changed) Artistic description: sleek alien/ chameleon like, also take some cues from mew and mewtwo. I was thinking the walking animation should be like randal from monsters inc when snooping around. As for his auto attack animation, i think he should levitate and and not have any visible object hitting whatever he is attacking, instead have him do a karthus q-like auto attack.

BASE STATISTICS(i have no experience balancing shit) HP:521-1928 Attack damage: 60 - 115 HP REGEN:6.5-14.4 Attack Speed: 0.612(+0%-+52.2%) MANA:350-1287 Armor:25.5-84.5 MANA REGEN:4.0-20.0 Magic Resist: 31-50 Ranged....ish: 200 Movement Speed: 330

PASSIVE: (all names are subject to change) LIFE ESSENCE FLUX Ohraa has the unique ability to switch between his hp bar and mana bar, also depending on which life essence Ohraa is using, his abilities gain a different effect.. Cooldown for this passive only changes when he reaches levels 6, 11,16(12s/ 9s/6s) and are not affected by cdr.

Q: TBA Range: 500 units in a straight line that is about the same width as Lucian's q. Cooldown: 6 seconds all levels(is affected by cdr) While using your standard hp as your life essence, your q does not apply damage but stuns everyone hit by it for 1.2 seconds, if u stun 3 or more units(this includes minions, champions and monsters, but not epic monsters), your life essence is involuntarily switched to your mana.(this does not affect your passive cooldown) Cost: 60 Mana

When your life essence is your mana your ability no longer stuns but does physical damage and scales with your bonus hp. PHYSICAL DAMAGE: 80/100/140/200/280(+50% bonus hp) Cost: 10% current hp

W: Insult to Injury Range 450 units in an aura around Ohraa. Cooldown: 16/14/12/10/8( unaffected by cdr) While using hp as your life essence, you ignite all enemy champions without the hp regen debuff for 100 true damage in the time span of 4 seconds(25 true damage per second at level 1) TRUE DAMAGE: 100/150/200/250/300. Cost:100 mana

While using mana as your life essence all enemies within the range of your aura are slowed for for 2.5 seconds. SLOW:15/20/25/30/40% In both forms, the ability can only be cast if the targets are under some form of cc. Cost: 8% current hp

E: Against your will Cooldown:12 seconds(affected by cdr) While using hp as your life essence Ohraa pulls all enemy champions behind him in a line. FIRST CAST: Channel the ability for up to 2 seconds increasing the range of your ability and the distance of the pull. If the channel is interrupted, it goes on full cooldown but the mana cost is refunded. SECOND CAST: Ohraa pulls the enemies behind him in a straight line depending on where they were caught within the ability range. and Ohraa gains a 10% movement speed buff for 1.5 seconds. Cost:80 mana While using mana as your life essence Ohraa pushes enemies away from him in a line. The ability is essentially reversed, Ohraa does not gain any buff after the second cast, however, if the ability is interrupted, no hp is refunded. Cost: 8% current hp

The shape of the ability the way i want it to be is a hand that as you increase the cast time, it slowly extends. So, it will start as a closed fist and then reach out a bit, as well as open its fingers by the end of the cast. It will remain the same shape in either form(hp/mana). The actual ability will be a type of psychic push/ pull, where the animation will be a hand actually pushing and pulling as a real hand would.

R: Its all on me Ohraa absorbs all incoming damage without getting harmed for 2.5 seconds, then releases it in a psychic blast that is a global ability for 50% of the damage absorbed as true damage. Cost: 12% current mana and hp. Cooldown: 145/130/115(affected by cdr)
I was thinking since the ult seems a bit strong, the range of its ability, as in its width, should be the same as Ashe's ult.