Datamined changes from current PBE release. Be aware that these changes are tentative and they might be changed or even reverted prior to the live patch.
Datamining only captures numerical changes. It doesn't capture changes to mechanics and bugfixes that may also significantly affect balance.
Due to the nature of how the datamining works it may also includes some of the changes that are already added to the live version in the most recent patch.
Updated: May 22 2PM
Live
PBE
Gangplank
Attack Speed
0.70
Attack Speed
0.75
Kayle
Kayle's next 3 attacks deal 
) to her target, and
121/179/267
physical damage (175% Attack Damage ) to her target, and 25/35/50
magic damage to enemies within 1 hex of the target.Kayle's next 3 attacks deal ) to her target, and
126/189/282
physical damage (175% Attack Damage ) to her target, and 30/45/65
magic damage to enemies within 1 hex of the target.
Lucian
PASSIVE: Lucian's attacks deal 20/30/45 bonus magic damage.ACTIVE: Lucian fires 4 shots in his target's direction. Each shot deals 40/60/90 magic damage to the first target hit.
PASSIVE: Lucian's attacks deal 25/35/50 bonus magic damage.ACTIVE: Lucian fires 4 shots in his target's direction. Each shot deals 40/60/90 magic damage to the first target hit.
Lux
Lux sends out a singularity to her current target. When it detonates, it reduces the target's Attack Damage by 40% for 4 seconds, and deals
230/345/520
to nearby enemies.Lux sends out a singularity to her current target. When it detonates, it reduces the target's Attack Damage by 40% for 4 seconds, and deals
240/360/600
to nearby enemies.
Pantheon
Pantheon leaps onto his target, dealing 120/180/270 magic damage (300/450/675% Magic Resist) and stunning them for 1.5 seconds. He then grants himself a
200/225/250
Health shield for 4 seconds.Pantheon leaps onto his target, dealing 116/174/260 magic damage (290/435/650% Magic Resist) and stunning them for 1.5 seconds. He then grants himself a
200/225/250
Health shield for 4 seconds.
Draven
Mana
70 / 140
Mana
70 / 130
Fiora
Fiora lunges at her enemy, dealing ) to all enemies hit. For the next 8 seconds, she takes 20% less damage and her attacks restore
138/206/322
physical damage (250/250/260% Attack Damage ) to all enemies hit. For the next 8 seconds, she takes 20% less damage and her attacks restore 30/40/55
Health. Fiora lunges at her enemy, dealing ) to all enemies hit. For the next 8 seconds, she takes 25% less damage and her attacks restore
138/206/322
physical damage (250/250/260% Attack Damage ) to all enemies hit. For the next 8 seconds, she takes 25% less damage and her attacks restore 30/40/55
Health. 
Gnar
Gnar slashes in a 2 hex radius around himself, dealing +
86/129/199
physical damage (110% Attack Damage + 20/30/50
) to enemies hit. His current target takes 300% damage (Total: 258/387/596
), and the Ability critically strikes them.Armor
50
Magic Resist
50
Gnar slashes in a 2 hex radius around himself, dealing +
80/120/185
physical damage (100% Attack Damage + 20/30/50
) to enemies hit. His current target takes 250% damage (Total: 200/300/463
), and the Ability critically strikes them.Armor
35
Magic Resist
35
Jax
PASSIVE: Jax leaps to his target and deals
85/130/210
bonus magic damage every 3rd attack. The bonus damage increases by 20/30/50
every 3rd attack, and stacks up to 7 times.PASSIVE: Jax leaps to his target and deals
90/135/220
bonus magic damage every 3rd attack. The bonus damage increases by 20/30/50
every 3rd attack, and stacks up to 7 times.
Rammus
PASSIVE: +60/90/150 Armor ACTIVE: Rammus powers himself up and leaps to the largest group of nearby enemies, dealing 203/304/500 magic damage (150/175/205% Armor + by 40% for 4 seconds.
+ 30/50/80
), knocking them up for 1.5 seconds, and reducing their Attack Damage by 40% for 4 seconds.Mana
60 / 120
PASSIVE: +61/91/151 Armor ACTIVE: Rammus powers himself up and leaps to the largest group of nearby enemies, dealing 204/306/502 magic damage (150/175/205% Armor + by 40% for 4 seconds.
+ 30/50/80
), knocking them up for 1.5 seconds, and reducing their Attack Damage by 40% for 4 seconds.Mana
50 / 110
Riven
Riven gains a
325/400/500
Health shield for 4 seconds and empowers her next 3 attacks with 90/135/225
bonus magic damage. If Riven has more Health than her target, she deals 100% more bonus magic damage.Riven gains a
325/400/500
Health shield for 4 seconds and empowers her next 3 attacks with 100/150/250
bonus magic damage. If Riven has more Health than her target, she deals 100% more bonus magic damage.
Aatrox
Aatrox sucks the soul of nearby enemies dealing 
). He then unleashes his demonic form for the rest of combat, replacing his spell with The Darkin Blade.The Darkin Blade: Aatrox leaps up and slams his greatsword down on his target, dealing
220/330/1200
magic damage and gaining 330/330/726 maximum Health (30/30/66% of his max HP ). He then unleashes his demonic form for the rest of combat, replacing his spell with The Darkin Blade.The Darkin Blade: Aatrox leaps up and slams his greatsword down on his target, dealing 200/300/1200
magic damage to all enemies hit and healing himself for 300/350/800
Health.Aatrox sucks the soul of nearby enemies dealing ). He then unleashes his demonic form for the rest of combat, replacing his spell with The Darkin Blade.The Darkin Blade: Aatrox leaps up and slams his greatsword down on his target, dealing
250/375/1200
magic damage and gaining 330/330/726 maximum Health (30/30/66% of his max HP ). He then unleashes his demonic form for the rest of combat, replacing his spell with The Darkin Blade.The Darkin Blade: Aatrox leaps up and slams his greatsword down on his target, dealing 250/375/1200
magic damage to all enemies hit and healing himself for 300/350/800
Health.
Bel'Veth
Bel'Veth dashes around her target and unleashes a flurry of +
2
attacks (250% of her Attacks per second), each dealing 80/120/510
physical damage (75/75/200% Attack Damage + 20/30/150
).Each time this is cast, Bel'Veth gains 30% bonus Attack Speed for the rest of combat.Bel'Veth dashes around her target and unleashes a flurry of +
2
attacks (250% of her Attacks per second), each dealing 80/120/510
physical damage (75/75/200% Attack Damage + 20/30/150
).Each time this is cast, Bel'Veth gains 35% bonus Attack Speed for the rest of combat.
Miss Fortune
Miss Fortune fires 8 waves of bullets towards the largest group of enemies within channels for 2 seconds. Enemies take
30/45/150
magic damage from the first bullet that hits them, and 15/24/100
magic damage from any other bullets that hit.Miss Fortune fires 8 waves of bullets towards the largest group of enemies within channels for 2 seconds. Enemies take
33/50/150
magic damage from the first bullet that hits them, and 15/24/100
magic damage from any other bullets that hit.
Neeko
Neeko's frog hops 3 times from enemy to enemy, dealing
75/110/300
magic damage in a small area each time. The final hop is empowered and deals 150/225/700
magic damage in a large area instead.Neeko's frog hops 3 times from enemy to enemy, dealing
80/120/360
magic damage in a small area each time. The final hop is empowered and deals 160/240/720
magic damage in a large area instead.
Warwick
PASSIVE: Warwick gains
20%/20%/50%
Omnivamp. Upon his first takedown, he enters KILL MODE 2.0, granting himself 60% Attack Speed and causing him to leap to new targets for the rest of combat.ACTIVE: Warwick attacks his target 6 times, dealing a total of 322/504/1890
physical damage. (460/480/1200% Attack Damage). If his target dies he gains 10 mana for each remaining slash.PASSIVE: Warwick gains
20%/20%/50%
Omnivamp. Upon his first takedown, he enters KILL MODE 2.0, granting himself 60% Attack Speed and causing him to leap to new targets for the rest of combat.ACTIVE: Warwick attacks his target 6 times, dealing a total of 350/525/2363
physical damage. (500/500/1500% Attack Damage). If his target dies he gains 10 mana for each remaining slash.
Leona
Mana
0 / 75
Mana
0 / 50
Ultimate Ezreal
Attack Damage
60/90/135
Attack Speed
0.90
Attack Damage
64/96/144
Attack Speed
0.95
Ace
(1) Aces execute enemies they damage under 15% Health
(4) Aces execute enemies they damage under 30% Health
(1) Aces execute enemies they damage under 15% Health
(4) Aces execute enemies they damage under 33% Health
Anima Squad
(3) 10% Attack Damage and 10 Ability Power
(5) 35% Attack Damage and 35 Ability Power
(7) 60% Attack Damage and 60 Ability Power
(3) 15% Attack Damage and 15 Ability Power
(5) 35% Attack Damage and 35 Ability Power
(7) 60% Attack Damage and 60 Ability Power
Gadgeteen
(3) Create 1 item, 4% per item.
(5) Create 2 items, 9% per item.
(3) Create 1 item, 4% per item.
(5) Create 2 items, 8% per item.
Star Guardian
(2) 35% Mana
(4) 70% Mana
(6) 120% Mana
(8) 175% Mana
(2) 30% Mana
(4) 60% Mana
(6) 100% Mana
(8) 175% Mana
Chronobreak
Gain an Ekko. When you field him, he Stuns all enemies for 2 seconds after 10 seconds of combat.
Gain an Ekko. When you field him, he Stuns all enemies for 2.5 seconds after 8 seconds of combat.
Destructive Resonance
Gain an Ekko. Your strongest Ekko's Ability hits all enemies within 3 hexes and deals 200% increased damage, but no longer slows enemies' Attack Speed.
Gain an Ekko. Your strongest Ekko's Ability hits all enemies within 3 hexes and deals 240% increased damage, but no longer slows enemies' Attack Speed.
Double Trouble II
When you field exactly 2 copies of a non-threat champion, they both gain 30% Attack Damage and 30 Ability Power, Armor, and Magic Resist. When you 3-star, gain a 2-star copy.
When you field exactly 2 copies of a non-threat champion, they both gain 33% Attack Damage and 33 Ability Power, Armor, and Magic Resist. When you 3-star, gain a 2-star copy.
Double Trouble III
When you field exactly 2 copies of a non-threat champion, they both gain 40% Attack Damage and 40 Ability Power, Armor, and Magic Resist. When you 3-star, gain a 2-star copy.
When you field exactly 2 copies of a non-threat champion, they both gain 44% Attack Damage and 44 Ability Power, Armor, and Magic Resist. When you 3-star, gain a 2-star copy.
Enchanted Ammunition
Gain a Lucian. When you field him, your team gains 20 Ability Power, and 1 when they attack (this can stack).
Gain a Lucian. When you field him, your team gains 30 Ability Power, and 1 when they attack (this can stack).
Grand Challenge
Gain a Fiora. Every 4 attacks on the same unit, your strongest Fiora deals 20% of her maximum health as magic damage, and heals for 9% of her maximum health.
Gain a Fiora. Every 4 attacks on the same unit, your strongest Fiora deals 20% of her maximum health as magic damage, and heals for 12% of her maximum health.
Jubilant Veil
Gain a Nilah. Combat start: Your strongest Nilah and her 5 nearest allies gain immunity to crowd control for 30 seconds.
Gain a Nilah. Combat start: Your strongest Nilah and her 6 nearest allies gain immunity to crowd control for 30 seconds.
Re-Energize
Gain a Wukong. When you field him, your team restores 50% of their Mana after their first cast each combat.
Gain a Wukong. When you field him, your team restores 66% of their Mana after their first cast each combat.
Reign of Anger
Gain a Renekton. Your strongest Renekton gains 40% Attack Speed and an extra 5% per 100 missing Health.
Gain a Renekton. Your strongest Renekton gains 40% Attack Speed and an extra 6% per 100 missing Health.
Rock Solid
Gain a Malphite. Your strongest Malphite gains Ability Power equal to 111% of his Armor, and his Ability's Armor duration is increased by 4 seconds.
Gain a Malphite. Your strongest Malphite gains Ability Power equal to 130% of his Armor, and his Ability's Armor duration is increased by 4 seconds.
Steadfast Presence
Gain a Poppy. Combat start: Your strongest Poppy grants your team a 325 Health shield.
Gain a Poppy. Combat start: Your strongest Poppy grants your team a 375 Health shield.