[Champion Concept] - Aghanim, The Gatekeeper of the Void. (Summoning a Siege Voidborn as an Innate)
As the title reads. Imagine a champion summoning a very own minion that walks slowly towards enemy turret and taking hits from it (Just like a Poro King does). However it is only for laning purpose and can only be summoned from a destroyed turret like Azir does (whether yours or the enemy team).
As for extra options, the champion has his own item that can be upgraded 3 times in the shop, which one of the option to upgrade the Siege Voidborn, which allows you to teleport to it like Poro King. Each time you level up his ultimate ,you can summon the Siege Juggernaut deeper into the enemy base (Outer, inner and inhibitor).
Anyway here it goes. (Although it was meant for a siege tanky minion, I decided to make this champion in a short time.)
Innate: "Void Pact" Aghanim has two innate:
"Dimensional Gate" (Static cooldown: 3 minutes after it closes)
Aghanim can open a portal from the ruins of destroyed turret, to release a Siege Voidborn that will walk slowly towards the turret. The Voidborn only attacks minions and turrets and every 5 second it release a dark pulse around it, dealing magic damage. However, if portal gets destroyed where it was summoned, Voidborn will lose control and will perish back to the Void. Portal last for 90 seconds.
"Void Shard" Aghanim starts each game with a** Void Shard**, which permanently occupies one of his item slots. For 900 gold he can upgrade his Void Shard to increase its stats and grant him one Charge, which he can upgrade his Voidborn.
- Void Shard becomes active when Voidborn is summoned, and can be casted as long Voidborn is active. Activating it cause Aghanim to teleport to the portal where Voidborn was summoned, and grants Voidborn protection for a brief time.
- Spells can also be casted from Voidborn. The Voidborn also gain ability to devour its target below 150/300/450 health if they are afficlted by Dark Pulse, healing a percentage of its missing health.
- Both Voidborn and the portal gets healed for amount if Aghanim use his ultimate "Nether Realm" and grants Voidborn movement and attack speed.
"Void Shard": Grants Aghanim +2 ability power per level. "Void Gem": Grants +3 ability power per level, +15 ability power, 120 mana and 1 Charge Point. "Void Crystal": Grants +4 ability power per level, +30 ability power, 250 mana and 1 Charge Point. "Heart of the Void": Grants +5 ability power per level, +50 ability power, 400 mana and 1 Charge Point.
Q: "Ether Bolt" Active: Aghanim shoots out a bolt of dark energy, dealing magic damage plus % of their current health. The bolt can pass through the target if Aghanim kills it. If the target is afflicted by Dark Pulse, Aghanim consume the dark pulse and will be healed. ( Healing an amount for each target hit, up to a cap.)
If a Rift is out while Aghanim cast his bolt, the Rift shoots also a bolt where the cursor is pointing out, dealing same amount of damage (50% damage if the target was already hit by the first one.)
Void Shard Bonus: Voidborn can also shoot Ether Bolt to the cursor. (Requires Aghanim to be nearby within 1300 radius)
W: "Dark Pulse" Active: Aghanim can cast his Dark Pulse on himself, ally champion or to his Voidborn, which sends out a pulse, dealing magic damage and afflict them with dark pulse that reduce their attack speed and health regeneration. If it hits a champion, the ally target grants a shield that absorbs incoming damage. Ally grants the kill from enemies when protected and will be healed for each kill while the protection is active (has a healing cap).
If a Rift is out while Aghanim cast Dark Pulse, the rift explodes dealing magic damage to nearby enemies, afflicting them with dark pulse. Both pulses can't deal magic damage at the same target.
Void Shard Bonus: Voidborn sends out its Dark Pulse with its own magic damage. (Requires Aghanim to be nearby within 1300 radius)
E: "Void Shift" Active: Aghanim instantly teleports to a nearby target location and leaves a Rift from his previous location that last for a duration. His next attack deals magic damage after teleportation.
If target is afflicted by Dark Pulse while getting hit by Aghanims next attack, the target will be stunned. (Dark pulse won't be consumed.)
Void Shard Bonus: Each time Void Shift is used, "Dimensional Gate" cooldown timer will be reduced by 5 second and prolongs the portal duration for 5 seconds.
R1: "Nether Realm" Passive: Each rank allows Aghanim to summon his Voidborn closer to the enemy base (Outer, Inner and Inhibitor Turret). Active: Aghanim creates a magical gate around himself, absorbing incoming spells while he and his allies takes reduced magic damage. When the field is out, Aghanim can cast his next spell, Nether Blast.
R2: "Nether Blast" Active: Aghanim blast a target with the absorbed damage he and his allies took. (Has a damage cap). Casting Nether Blast will end Nether Realm.
Void Shard Bonus: Voidborn also activates its own gate, reducing incoming damage. This doesn't however give Aghanim absorbing damage.
BIOGRAPHY: Name: Aghanim Gender: Male Race: Human, altered by the Void Age: Unknown Birthplace: Shurima (long before Azir era) Faction: Void (formerly Shurima) Occupation: Gatekeeper (formerly a fugitive slave) Tools: Floating Throne, Void powers.
Known for: Releasing Otherworldy creatures in Shurima, attacking the Empire. 
Xer'Sai voidborns managed to settle the grounds of Shurima Desert during the invasion.
Although invasion was a failure due to 
Ascended Warriors, who manages to slay many of the Voidborns and disrupting the portals, Aghanim decided to hide inside the Void, waiting for an opportunity to strike Runeterra once again along with the mightiest Voidborn, who's still in progression to be completely released without any resistance.
More info coming later.
-Caporai or WickedKing
and 
mix in to one.