"If that's just hungry, I don't want to see angry." - Tryndamere, the Barbarian King
When the prophet Malzahar was reborn in Icathia, he was led there by an ominous voice which thereafter anchored itself to his psyche. From within, this voice bestowed upon him terrible purpose, and though Malzahar was no longer tormented by its call, the voice did not cease its unrelenting summons. This baleful beacon's gentle flicker - now fastened to Runeterra - drew forth a putrid beast that ambled across a threshold it did not understand, widening a fissure between spaces which were never meant to meet. There, amongst the haunting ruins of Icathia, Kog'Maw manifested in Valoran with unsettling curiosity. The spark which led him to Runeterra teased him still, urging him gently towards Malzahar. It also encouraged him to familiarize himself with his new environment, to the stark horror of everything he encountered on his journey.
The enchanting colors and aromas of Runeterra intoxicated Kog'Maw, and he explored the fruits of the strange world the only way he knew how: by devouring them. At first he sampled only the wild flora and fauna he happened across. As he traversed the parched Tempest Flats, however, he came upon a tribe of nomads. Seemingly unhampered by conventional rules of physics, Kog'Maw consumed every nomad and any obstacles they put in his way, amounting to many times his own mass and volume. The most composed of his victims may have had time to wonder if this was due to the caustic enzymes which stung the ground as they dripped from his gaping mouth, although such musings were abruptly concluded. When his wake of catastrophe reached the Institute of War, an enthusiastic Malzahar greeted him with an enticing prospect: taste the best Runeterra could offer... on the Fields of Justice.
Active:Kog'Maw spews a ball of ooze in the target direction, dealing magic damage and slowing enemies for 1 second. The ooze lingers for 4 seconds, slowing enemies who stand in it as well as for 0.25 seconds after they leave the affected area.
Active:Kog'Maw launches a ball of acid into the air that drops after 0.6 seconds at the target location, damaging all enemies hit and granting sight of them for 4 seconds. Champions hit by Living Artillery take double its base damage.
Revised Active: For the next 6 seconds, Kog'Maw gains increased attack range, his total attack speed and attack speed cap are doubled and the cast times on his abilities are halved. For the duration, Kog'Maw's attacks versus non-minions deal only 55% of his attack damage but deal bonus magic damage equal to 「 1.25% per 100 AD 」「 1% per 80 AD 」(+ 「 0.75% per 100 AP) 」「 1% per 133.3 AP 」of the target's maximum health.
Duration reduced to 6 seconds from 8.
Bonus range reduced to 90 / 120 / 150 / 180 / 210 from 130 / 150 / 170 / 190 / 210.
Cooldown reduced to 13 / 11.5 / 10 / 8.5 / 7 seconds from 17 at all ranks.
New Effect: Cooldown timer begins when the buff ends instead of on-cast.
Base damage reduced to 70 / 110 / 150 from 80 / 120 / 160.
Bonus AD ratio increased to 65% bonus AD from 50% Bonus AD
AP ratio reduced to 25% AP from 30% AP.
Removed: Bonus damage against champions.
New Effect: Deals 「 twice the damage 」「 140 / 220 / 300 + 130% Bonus AD + 50% AP 」 to targets below 50% health and 「 thrice the damage 」「 210 / 330 / 450 + 195% bonus AD + 75% AP 」 to targets below 25% health.
Base and per-stack mana cost increased to 50 from 40.
Maximum cost increased to 500 from 400.
Added cost duration increased to 10 seconds from 6.