Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Caustic Spittle [Q]
Passive: Increases Attack Speed by 10/15/20/25/30%
Active: Deals 60/110/160/210/260 +(70% Ability Power) damage to the target as well as reducing their armor by 5/10/15/20/25.
I use this only if I really need to smash whoever I am killing, the bonus 260+ damage at level 18 is nice. The range isn't super long so don't try to use it too often, you are usually better off just decimating people from far away with your Bio-Arcane Barrage.
Bio-Arcane Barrage [W]
On use causes your attacks to have an increased 140/180/220/260/300 unit range as well as making your attacks do an additional 2/3/4/5/6% of the target's health in damage (+1% of your AP). This effect lasts for six seconds.
This is your primary ability. Use this to both harass and scrape enemies in battles. Paired with your Madred's Bloodrazor, Malady, lizard buff and Sword of the Divine you will be doing absurd amounts of damage on each hit, at an extremely long range. Because of its low mana cost you can use Bio-Arcane Barrage to harass early game as well, and potentially even get off some early kills.
Void Ooze [E]
Sprays ooze in front of you at a fairly long range which deals 60/110/160/210/260+(70% AP) to any enemies it passes through. Additionally it slows enemies who pass through the trail left behind by 28/36/44/52/60% of their movement speed.
This ability is great paired with your Bio-Arcane Barrage and a teammate's stun. Having your enemies slowed along with your increased range allows you to stand still and attack with no movement in between for a few seconds while your enemy is trying to flee.
Ultimate: Living Artillery [R]
You fire an artillery ooze at an incredible range (1400/1700/2000) which falls after a short delay dealing 80/120/160 + (30% AP) magic damage and reveals targets for 4 seconds. Damage to champions is increased by 150%. Every subsequent cast within 6 seconds costs an additional 50 mana, up to a maximum of 250 additional mana.
This is a great ability for killing fleeing foes who have managed to escape your spit storm, revealing potentially trapped bushes and farming minions when you need a bit more area damage. Do not use this as your main source of damage... it is good harassment, but it comes at a high cost if you are spamming it.
this is my build 4 kog maw i won most of the game i played with him and i will tell u how 2 make the best of this hero.
most peaple dont know that kog can mid.but he is on of the best guyz he just must b lvl 6 and get his ult 2 start the rampage.
ur primary goal at first is 2 stay alive
that's y i picked "e" at first so u can escape in case u got beaten up
wen u get 2 lvl 6 u should start harrasing ur enemy
but care of mana onlye use ult every 7 sec
so u dont get charged mor mana
wen u get 2 half of his hp
goast get behind him use goo 2 slow and if nesessary use exost
get in team fight bit late and get the major dps then the tank.
make shure u have a tank with u as u cant die quiskly in team fights.
sry 4 bad english and hopr this is usful.