Abilities of Ornn
Spell skill priority is an important winning factor for Ornn. Understanding the abilities of Ornn in League of Legends is another. Below you can find all the relevant information on Ornn abilities. In order for item builds you should check the build for Ornn.
Passive: Living Forge
Ornn gains an additional bonus Armor and Magic Resist from all sources.
Ornn can spend gold to forge non-consumable items anywhere.
Additionally, he can create masterwork items for himself and for his allies.
Volcanic Rupture
Ornn slams the ground, sending out a fissure dealing damage and slowing enemies hit. After a small delay, a magma pillar forms at the end location.
Ornn slams the ground, creating a fissure dealing totaldamage physical damage and Slowing by e5% for e6 seconds. A pillar of rock forms at the fissure's end for e3 seconds.
Bellows Breath
Ornn advances, breathing fire. Enemies hit by the final gout of flame become Brittle.
Ornn stomps forward Unstoppably while breathing fire, dealing maxpercenthpperticktooltip% max Health magic damage over breathduration seconds. Enemies hit by the final bout of flame become Brittle for brittleduration seconds.
Immobilizing effects on Brittle targets have their duration increased by 30% and deal an additional brittlepercentmaxhpcalc max Health magic damage. Ornn's Attacks against Brittle targets Knock them Back, dealing the additional damage.
Searing Charge
Ornn charges, dealing damage to enemies he passes through. If Ornn collides with terrain while charging, the impact creates a shockwave around him which deals damage and knocks up enemies.
Ornn charges, dealing totaldamage physical damage. If Ornn rams into terrain, he creates a shockwave that Knocks Up enemies for knockupduration seconds and applies the same damage to those not hit by the charge.
Ornn's charge destroys magma pillars and terrain created by enemies.
Call of the Forge God
Ornn summons a massive elemental at a location which travels toward him with increasing speed. Enemies run over by the elemental take damage, are slowed and are made Brittle. Ornn can recast the ability to charge into the elemental, redirecting it in the direction he hits it, causing the elemental to affect any enemies it runs over to be knocked up, dealing the same damage and re-applying Brittle.
Ornn summons a massive lava elemental, which stampedes towards him, dealing rdamagecalc magic damage, applying Brittle to, and Slowing enemies hit by rslowpercentbasepremath% for brittledurationtooltiponly seconds.
Ornn can Recast to dash with a headbutt. If he dashes into the elemental, he redirects and empowers it, causing it to Knock Up the first champion for rstunduration second and subsequent champions for minstun seconds. The elemental also deals rdamagecalc magic damage and reapplies Brittle.
FAQ on Ornn
What do you max first on Ornn?
Most Ornn pros max out 
Bellows Breath first.