Origins
Cultist
Once your team loses 50% of their Health, Galio is summoned, slamming into the largest cluster of enemies and Stunning them. Galio's strength increases based on total star level of all active Cultists.
(3) Tyrant Galio
(6) Demon Lord Galio
(9) Supreme Overlord Galio
(11) The Endbringer
Daredevil
Samira seeks the thrill of battle, dashing after every other attack. After every dash, she gains a 10% max Health shield and her next attack fires 2 shots, gaining Style. At max Style, she casts.
Divine
Upon attacking 6 times or dropping below 50% Health, Divine champions remove all crowd control and ascend, gaining 
Durability and dealing bonus true damage for 6 seconds.
Durability and dealing bonus true damage for 6 seconds.(2) 25% and 25% true damage
and 25% true damage(4) 40% and 40% true damage
and 40% true damage(6) 55% and 55% true damage
and 55% true damage(8) 70% and 70% true damage
and 70% true damage
Dragonsoul
The first few Dragonsoul allies to take damage in combat receive the Dragon's Blessing. While blessed, the unit gains bonus stats, and every 5th attack fires a Dragonsoul blast, dealing 40% of the target's max Health in magic damage.On death, this blessing passes to the closest Dragonsoul ally without a blessing.
(3) 1 Blessing; 40% 
(6) 3 Blessing; 70%
(9) 6 Blessing; 140%
Elderwood
Every 2 seconds all Elderwood champions grow, gaining bonus stats. This effect stacks up to 5 times.
(3) 15 
, 5 
, 5 (6) 20 , 10
, 10 (9) 30 , 15
, 15 
Enlightened
Enlightened champions generate more Mana.
(2) 50% increase
(4) 100% increase
(6) 150% increase
(8) 250% increase
Exile
If an Exile has no adjacent allies at the start of combat, they gain:
(1) A shield equal to 50% of their max Health
(2) AND 80% 
Fortune
(3) Winning combat against a player will give bonus orbs. The longer you've gone without an orb, the bigger the payout!
(6) Wins give an extra bonus orb with rare loot.
(10) Legends say one day the Money Tree will rise up to fight.
Ninja
Ninjas gain bonus Attack Damage and Ability Power.This trait is only active when you have exactly 1 or 4 unique Ninjas.
Attack Damage and Ability Power.This trait is only active when you have exactly 1 or 4 unique Ninjas.(1) Ninja gains 50% and 50
and 50 (4) All Ninjas gain 140% and 140
and 140 
The Boss
When Sett first drops below 40% Health, he leaves combat to start doing sit-ups. Each sit-up restores 15% of his maximum Health and gives him 40% Attack and Move Speed. If he reaches full Health he returns to combat Pumped Up: all of his attacks and spells deal true damage. If all of his allies die, he will immediately return to combat.
Warlord
Warlords have bonus 
Health and Ability Power. Each victorious player combat increases the bonus by 10%, stacking up to 5 times.
Health and Ability Power. Each victorious player combat increases the bonus by 10%, stacking up to 5 times.(3) 250 and 25%
and 25% (6) 400 and 40%
and 40% (9) 700 and 70%
and 70% (11) 888 and 88% Combat Start: The Warlord's army joins the fight.
and 88% Combat Start: The Warlord's army joins the fight.
Classes
Adept
Adepts calm the flow of battle, reducing the Attack Speed of all enemies by 50% for a few seconds at the start of combat.
(2) 2 seconds
(3) 3.5 seconds
(4) 6 seconds
Assassin
Innate: Leap to the enemy backline when combat starts.Assassins' Abilities can critically strike and they gain bonus 
Critical Strike Chance and bonus 
Critical Strike Damage.
Critical Strike Chance and bonus Critical Strike Damage.(2) 10% and 25%
and 25% (4) 30% and 55%
and 55% (6) 50% and 90%
and 90% 
Blacksmith
After each combat Ornn participates in, he makes progress forging an Artifact item. The higher his star-level, the faster he works.
Brawler
Brawlers gain bonus Health and Attack Damage.
Health and Attack Damage.(2) 400 and 10%
and 10% (4) 700 and 20%
and 20% (6) 1000 and 40%
and 40% (8) 1400 and 80%
and 80% 
Duelist
Innate: Duelists move faster.Duelists' attacks grant Attack Speed, up to 8 stacks.
Attack Speed, up to 8 stacks.(2) 12% per stack
per stack(4) 20% per stack
per stack(6) 35% per stack
per stack(8) 60% per stack
per stack
Emperor
Azir deploys with two Sand Guards who can be placed anywhere on the battlefield. They do not move or attack, and die when Azir does.
Executioner
Executioners' attacks and Abilities always critically hit targets beneath a certain Health threshold.
(2) below 33% health
(3) below 66% health
(4) below 99% health
Keeper
At the start of combat, Keepers grant themselves and all adjacent allies a Shield for a duration. This Shield is 50% stronger on Keepers.
(2) 150 Shield, 8 seconds
(4) 200 Shield, 10 seconds
(6) 250 Shield, 12 seconds
(8) 500 Shield, 12 seconds
Mage
Mages cast their Abilities twice and have modified total Ability Power.
Ability Power.(3) 80%
(5) 105%
(7) 130%
(10) 190% , Mages cast MUCH more frequently
, Mages cast MUCH more frequently
Sharpshooter
Sharpshooters' attacks and Abilities ricochet to nearby enemies, dealing reduced damage.
(2) 2 ricochets with 65% reduced damage
(4) 3 ricochets with 45% reduced damage
(6) 4 ricochets with 30% reduced damage
Slayer
Slayers gain Omnivamp that gets stronger as their own Health decreases, and gain 
Damage Amp that scales up based on their target's missing Health.
Omnivamp that gets stronger as their own Health decreases, and gain Damage Amp that scales up based on their target's missing Health.(3) 15% to 30% and 10% to 30%
and 10% to 30% (6) 30% to 60% and 20% to 40%
and 20% to 40% (9) 45% to 80% and 30% to 50%
and 30% to 50% 
Syphoner
Your team gains Omnivamp.
Omnivamp.(2) 10% for Allies; 40% for Syphoners
for Allies; 40% for Syphoners (4) 25% for Allies; 100% for Syphoners
for Allies; 100% for Syphoners (6) 50% for Allies; 125% for Syphoners
for Allies; 125% for Syphoners 
Vanguard
Vanguards gain bonus Armor and Magic Resist.
Armor and Magic Resist.(2) 125 and 20
and 20 (4) 275 and 40
and 40 (6) 450 and 60
and 60 (8) 800 and 100
and 100 