LoL Champion Build Guides: Maokai

Maokai slams the ground, the force of which knocks nearby enemies back and sends an arcane shockwave forward, dealing 70 / 110 / 150 / 190 / 230 (+40% of ability power) magic damage and slowing his enemies by 99% for 0.25 seconds. Enemies close to Maokai are knocked back slightly more.

Maokai transforms into a cloud of arcane energy, becoming untargetable and quickly traveling to a target enemy. The target takes 70 / 95 / 120 / 145 / 170 (+40% of ability power) magic damage and is rooted in place for 1 / 1.1 / 1.2 / 1.3 / 1.4 second(s).

Maokai hurls a sapling to a target area. The sapling becomes implanted in the ground, warding a nearby area for 30 seconds. After a 1 second delay after landing, the sapling will seek out nearby enemies. When an enemy approaches, the sapling will chase for up to 2.5 seconds and explode in an arcane blast that deals 25 / 50 / 75 / 100 / 125 plus 7 / 7.25 / 7.5 / 7.75 / 8% (+1% per 100 ability power) of target's maximum health as magic damage to enemies and slows them by 35% for 2 seconds.

Saplings have 400 base movement speed increasing based on Maokai's boots:
Boots of Speed: 425
Most upgraded boots: 445
Boots of Swiftness / Boots of Mobility: 460

Saplings tossed into brush last 30 (+2.5% of Maokai's bonus health) seconds and have a larger detonation radius. Enemies caught in the explosion take 67% damage on detonation plus two additional ticks of 67% damage over 2 seconds.

Sapling Toss's damage against non-champions is capped at 300 (empowered sapling damage over time has its own cap, for a total of 600 per empowered sapling)

Maokai summons a colossal wall of 5 thorny brambles that slowly advances forward, each stopping at the first enemy champion they collide with, dealing 150 / 225 / 300 (+75% of ability power) magic damage and rooting them for 0.8-2.6 seconds (based on distance traveled).