Not a well developed champion but one to demonstrate a concept I had thematically. Specifically the negative ratio values you will see within the kit. Pay attention carefully to the negative number you would not typically see as they are not only important but the point of all this.
Ambras was a resistant victim of the void that never was completely corrupted and must resist it's influence his every waking hour. Always he is shifting between a mage researcher and ravenous void spawn. His explorations often come with dangers that require him to use the same strength he needs to suppress the voids corruption, but the more power he needs the more he becomes a nightmare.
Champion has a 550 auto range.
Passive - Landing an ability grants 5 + (10% AP) movement speed for every enemy champion it damages. Landing three abilities in 3 seconds roots each champion damaged for 1.5 + (- 50% per 100 AP) seconds.
Q - Fire a skill shot projectile that deals 80 / 125 / 160 / 200 / 240 (+ 80% AP) magic damage dealing 30% as physical damage at a 100 + (1 to 1 AP) units around the first target hit and slowing enemies damaged by 40 + (- 15 per 100 AP up to 40)% slow for 1.5 seconds.
Range: 1000 + (- 60 per 100 AP)
W- Send an explosive ball of energy to a target point dealing 75 / 125 /140/ 175 / 200 (+ 80% AP) magic damage to those within a 300 unit diameter, silences for 1.6 / 1.7 / 1.8 / 1.9 / 2 + (- 1 per 100 AP) seconds, and grounds targets for 1 + (.5 per 100 AP) seconds.
Range: 700 + (- 40 per 100 AP) units
E- Changes the champions next auto to deal 40 / 60 / 85 / 110 / 140 (+ 70% AP) magic damage.
Range: 600 + (- 200 per 100 AP) units.
At 200 units range this empowered auto will no longer lose range from building AP and the champion becomes melee. If the champion is melee the empowered auto animation becomes a bite.
Passive: If the champion becomes melee they gain 20 movement speed from autoing champion for 2 seconds and their basic attacks heal them for 5% of the champions AP.
R- Embrace the Void - Ambras Petrus releases his restraint on the void corrupting his form into that of a stream lined ravenous beast ready to run down and tear through all in its path.
Gain 50/100/150 AP for 10 seconds, all movement speed effects are increased by 50%, if the champion is melee the healing granted from auto attacks is doubled.
Passive: AP granted from Embrace the Void does not effect any of the ranges of the other abilities.
Yes this is crude, but remember its more demonstrating the potential thematic of a concept to show how it can make sense in terms of lore. I do however gotta say as far as champion ideas on the fly go I don't think I did too shabby despite missing every cool down, mana cost, and all but one name,