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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: Mar 25 8AM
Live
PBE
Anivia
Anivia
Fire an ice shard at target that deals 325/455/650 (Ability power) magic damage. If they are Chilled, the damage Critically Strikes.

Damage: 455 (Ability power)
[325/455/650]
Fire an ice shard at target that deals 355/530/750 (Ability power) magic damage. If they are Chilled, the damage Critically Strikes.

Damage: 530 (Ability power)
[355/530/750]
Blitzcrank
Blitzcrank
Health
700/1260/2268
Health
717/1291/2323
Jhin
Jhin
For the next 4 attacks, set Attack Speed to 1, gain infinite range and replace attacks with a cannon shot. Cannon shots deal 160/237/359 (Attack damageAbility power) physical damage. The 4th shot deals 144% more damage.

Damage: 237 = 215 (Attack damage) + 22 (Ability power)
[145/215/325]
For the next 4 attacks, set Attack Speed to 1, gain infinite range and replace attacks with a cannon shot. Cannon shots deal 170/257/384 (Attack damageAbility power) physical damage. The 4th shot deals 144% more damage.

Damage: 257 = 235 (Attack damage) + 22 (Ability power)
[155/235/350]
Lulu
Lulu
Deal 330/500/750 (Ability power) magic damage to target and make them dance for 2 seconds. The projectile then bounces to the nearest target, dealing 140/210/315 (Ability power) magic damage.
Mana
20 / 70
Deal 330/500/750 (Ability power) magic damage to target and make them dance for 1 seconds. The projectile then bounces to the nearest target, dealing 140/210/315 (Ability power) magic damage.
Mana
10 / 55
Shen
Shen
Health
700/1260/2268
Health
717/1291/2323
Cho'Gath
Cho'Gath
Restore 200/225/400 (Ability power) Health and rupture a 2 hex circle beneath target. After a brief delay, enemies within are knocked up for 1.5 seconds and take 88/152/248 (HealthAbility power) magic damage.
Gain 10/15/25 permanent max Health (Total: @TFTUnitProperty.:TFT16_ChoGath_BonusHealth@). Restore 200/225/400 (Ability power) Health and rupture a 2 hex circle beneath target. After a brief delay, enemies within are knocked up for 1.5 seconds and take 88/152/248 (HealthAbility power) magic damage.

Permanent Health
[10/15/25]
Rek'Sai
Rek'Sai
Dash to the furthest enemy within 3 hexes and deal 160/240/360 (Attack damageAbility power) physical damage to them. The next 3 attacks hit adjacent enemies and deal 110/165/300 (Attack damage) physical damage.

Damage: 240 = 210 (Attack damage) + 30 (Ability power)
[140/210/315]
Dash to the furthest enemy within 3 hexes and deal 160/240/380 (Attack damageAbility power) physical damage to them. The next 3 attacks hit adjacent enemies and deal 110/165/300 (Attack damage) physical damage.

Damage: 240 = 210 (Attack damage) + 30 (Ability power)
[140/210/335]
Gwen
Gwen
Dash around target and snip 5 (Souls) times, dealing 50/75/120 (Ability power) magic damage to them and 25/35/60 (Ability power) damage to all other enemies in a cone.
Passive: Gain 15% Omnivamp.
Active: Dash around the target and snip 5 (Souls) times, dealing 50/75/120 (Ability power) magic damage to them and 25/35/60 (Ability power) damage to all other enemies in a cone.
Malzahar
Malzahar
Health
650/1170/2106
Health
649/1168/2103
Milio
Milio
Launch a fuemigo at target that bounces 3 times, dealing 190/285/445 (Ability power) magic damage to enemies hit. The last bounce deals 160/240/375 (Ability power) magic damage to enemies in a 1 hex radius.

Ball Damage: 285 (Ability power)
[190/285/445]
Launch a fuemigo at target that bounces 3 times, dealing 215/325/485 (Ability power) magic damage to enemies hit. The last bounce deals 160/240/375 (Ability power) magic damage to enemies in a 1 hex radius.

Ball Damage: 325 (Ability power)
[215/325/485]
Vayne
Vayne
Tumble to a nearby hex, then fire a bolt at target that deals 130/195/335 (Attack damageAbility power) true damage.

Damage: Ability power
[10/15/25]
Damage: 195 = 180 (Attack damage) + 15 (Ability power)
[120/180/310]
Tumble to a nearby hex, then fire a bolt at target that deals 116/175/300 (Attack damageAbility power) true damage.

Damage: Ability power
[6/10/15]
Damage: 175 = 165 (Attack damage) + 10 (Ability power)
[110/165/285]
Diana
Diana
Passive: Ability damage from your strongest Leona and strongest Diana marks enemies as Moonlit, reducing their damage by 10%.
Active: Gain 100/175/300 (Ability power) Shield. Unleash a bolt of lunar energy at the farthest non-Moonlit enemy within 4 hexes, dealing 125/190/600 (Ability power) magic damage. Then, dash to all Moonlit enemies, dealing 160/240/1500 (Ability power) magic damage to them.

Damage: 190 (Ability power)
[125/190/600]
Passive: Ability damage from your strongest Leona and strongest Diana marks enemies as Moonlit, reducing their damage by 10%.
Active: Gain 100/175/300 (Ability power) Shield. Unleash a bolt of lunar energy at the farthest non-Moonlit enemy within 4 hexes, dealing 140/210/600 (Ability power) magic damage. Then, dash to all Moonlit enemies, dealing 160/240/1500 (Ability power) magic damage to them.

Damage: 210 (Ability power)
[140/210/600]
Kai'Sa
Kai'Sa
Dash away from all enemies, then fire 15/15/25 missiles split across the 4 nearest enemies. Each missile deals 48/77/170 (Attack damageAbility power) physical damage.

Damage: 77 = 68 (Attack damage) + 9 (Ability power)
[42/68/150]
Dash away from all enemies, then fire 15/15/25 missiles split across the 4 nearest enemies. Each missile deals 45/72/170 (Attack damageAbility power) physical damage.

Damage: 72 = 63 (Attack damage) + 9 (Ability power)
[39/63/150]
Singed
Singed
Passive: Run around the battlefield, leaving a poison trail that lingers for 4 seconds. Poison trails deal 8/18/160 (Ability power) magic damage per second to enemies within. Gain 0 (Attack speed) Mana each second.
Active: For 4 seconds, gain increased Move Speed, restore 15/80/500 (Ability power) Health each second, and gain 20/60/100 Armor and Magic Resistance.

Damage Per Second: 18 (Ability power)
[8/18/160]
Defenses: 60
[20/60/100]
Passive: Run around the battlefield, leaving a poison trail that lingers for 4 seconds. Poison trails deal 13/26/160 (Ability power) magic damage per second to enemies within. Gain 0 (Attack speed) Mana each second.
Active: For 4 seconds, gain increased Move Speed, restore 15/80/500 (Ability power) Health each second, and gain 35/60/100 Armor and Magic Resistance.

Damage Per Second: 26 (Ability power)
[13/26/160]
Defenses: 60
[35/60/100]
Skarner
Skarner
Passive: All allies gain 10/20/100 Armor.
Active: Gain 750/950/3000 (Ability power) Shield for 4 seconds. Impale up to three nearby enemies in a line, dealing 84/126/1750 (Armor) physical damage and Stunning them for 1.5/1.75/8 seconds.

Passive Armor
[10/20/100]
Passive: All allies gain 15/30/100 Armor.
Active: Gain 750/950/3000 (Ability power) Shield for 4 seconds. Impale up to three nearby enemies in a line, dealing 84/126/1750 (Armor) physical damage and Stunning them for 1.5/1.75/8 seconds.

Passive Armor
[15/30/100]
Taric
Taric
Passive: All allies gain 10/20/100 Magic Resist. Once per combat after dropping below 35% max Health, restore 300/700/2500 health over 2 seconds.
Active: Gain 600/700/2500 (Ability power) Shield and grant the 2 lowest Health allies 125/150/1000 (Ability power) Shield for 4 seconds. The next 2/2/10 attacks deal 200/300/3000 (Ability power) bonus magic damage.

Passive Magic Resist
[10/20/100]
Passive: All allies gain 15/30/100 Magic Resist. Once per combat after dropping below 35% max Health, restore 300/700/2500 health over 2 seconds.
Active: Gain 600/700/2500 (Ability power) Shield and grant the 2 lowest Health allies 125/150/1000 (Ability power) Shield for 4 seconds. The next 2/2/10 attacks deal 200/300/3000 (Ability power) bonus magic damage.

Passive Magic Resist
[15/30/100]
Aurelion Sol
Aurelion Sol
Passive: For every 250 ability damage dealt to enemies in player combat, gain Stardust. Stardust makes The Skies Descend more powerful.
Active: Crash a star on target, dealing 525/725/5000 (Ability power) magic damage in a 2 hex radius.
Stardust Upgrades:
25: Create a shockwave that deals 100/150/1000 (Ability power) additional magic damage in a 3 Hex radius.
60: The star crash deals 15% more damage.
140: Shockwave increases to a 4 hex radius.
200: Knock up targets in the star crash for 1.5 seconds.
300: Shockwave increases to 10 radius.
550: The star crash deals 33% bonus true damage.
800: Also call down a meteor storm that deals 500/750/9999 (Ability power) magic damage split between living enemies.
1444: Summon a black hole at the epicenter, instantly killing enemies within.

Damage: 725 (Ability power)
[525/725/5000]
Passive: For every 250 ability damage dealt to enemies in player combat, gain Stardust. Stardust makes The Skies Descend more powerful.
Active: Crash a star on target, dealing 475/700/5000 (Ability power) magic damage in a 2 hex radius.
Stardust Upgrades:
25: Create a shockwave that deals 100/150/1000 (Ability power) additional magic damage in a 3 Hex radius.
60: The star crash deals 15% more damage.
140: Shockwave increases to a 4 hex radius.
200: Knock up targets in the star crash for 1.5 seconds.
300: Shockwave increases to 10 radius.
550: The star crash deals 33% bonus true damage.
800: Also call down a meteor storm that deals 500/750/9999 (Ability power) magic damage split between living enemies.
1444: Summon a black hole at the epicenter, instantly killing enemies within.

Damage: 700 (Ability power)
[475/700/5000]
Mel
Mel
Passive: While gaining Mana, throw out 2/2/9 radiant orbs that orbit around target. They deal 65/100/150 (Ability power) magic damage in a 1 hex radius and drain 1 Mana from enemies hit each second. After draining 235/235/10 mana, gain a random Radiant Item. 
Active: Detonate orbs on target, causing a 3 hex radius explosion that deals 1000/1500/10000 (Ability power) magic damage to them and 400/600/10000 (Ability power) damage to all other enemies hit.
Passive: While gaining Mana, throw out 2/2/9 radiant orbs that orbit around target. They deal 65/100/150 (Ability power) magic damage in a 1 hex radius and drain 1 Mana from enemies hit each second. After draining 215/215/10 mana, gain a random Radiant Item. 
Active: Detonate orbs on target, causing a 3 hex radius explosion that deals 1000/1500/10000 (Ability power) magic damage to them and 400/600/10000 (Ability power) damage to all other enemies hit.
Zaahen
Zaahen
Dash around target and slash in a circle, dealing 110/165/1700 (Attack damageAbility power) physical damage to target and 44/66/680 (Attack damageAbility power) physical damage to all other adjacent enemies hit. If the target doesn't die, immediately cast again.
If this Ability is cast 22 times in a row, instead slam on target, instantly killing them and dealing 220/330/3400 (Attack damageAbility power) physical damage to all enemies within 3 hexes.

Damage: Ability power
[20/30/200]
Damage: 165 = 135 (Attack damage) + 30 (Ability power)
[90/135/1500]
Secondary Damage: 66 = 40% of 165
Slam Circle Damage: 330 = 200% of 165
Attack Speed
1.10
Armor
80
Magic Resist
80
Health
1200/2160/3888
Dash around target and slash in a circle, dealing 105/160/1700 (Attack damageAbility power) physical damage to target and 42/64/680 (Attack damageAbility power) physical damage to all other adjacent enemies hit. If the target doesn't die, immediately cast again.
If this Ability is cast 22 times in a row, instead slam on target, instantly killing them and dealing 210/320/3400 (Attack damageAbility power) physical damage to all enemies within 3 hexes.

Damage: Ability power
[15/25/200]
Damage: 160 = 135 (Attack damage) + 25 (Ability power)
[90/135/1500]
Secondary Damage: 64 = 40% of 160
Slam Circle Damage: 320 = 200% of 160
Attack Speed
0.90
Armor
70
Magic Resist
70
Health
1100/1980/3564
Chronokeeper 0
Chronokeeper
Every 2 casts, the Chronokeeper stores 1 XP. If he has enough stored for you to level up, he transfers you the required XP.
If you are level 10, he instead gains 15% Damage Amp.
Stored XP: 0<ShowIfCustom.Set=TFTSetEventCT>
In Choncc's Treasure, the amount of casts required to gain XP is increased to 3 until Stage 3-5.</ShowIfCustom.Set=TFTSetEventCT>
Every 2 casts, the Chronokeeper stores 2 XP. If he has enough stored for you to level up, he transfers you the required XP.
If you are level 10, he instead gains 15% Damage Amp.
Stored XP: 0<ShowIfCustom.Set=TFTSetEventCT>
In Choncc's Treasure, the amount of casts required to gain XP is increased to 3 until Stage 3-5.</ShowIfCustom.Set=TFTSetEventCT>
Darkin 0
Darkin
(1) Darkin gain 15% Omnivamp.
(2) AND you heal for 25% of the player damage you deal.
(3) AND whenever Darkin restore 600 Health, they deal 333 magic damage to the 2 closest enemies.
(1) Darkin gain 15% Omnivamp.
(2) AND you heal for 25% of the player damage you deal.
(3) AND whenever Darkin restore 525 Health, they deal 400 magic damage to the 2 closest enemies.
Gunslinger 0
Gunslinger
Gunslingers gain Attack Damage. Every 4th attack from Gunslingers deals bonus physical damage.
(2) 22% Attack damage, 100 bonus damage
(4) 40% Attack damage, 200 bonus damage
Gunslingers gain Attack Damage. Every 4th attack from Gunslingers deals bonus physical damage.
(2) 22% Attack damage, 100 bonus damage
(4) 44% Attack damage, 200 bonus damage
Yordle 0
Yordle
(2) Yordles gain 40 Health and 5% Attack Speed for each unique Yordle fielded. 3 star Yordles grant 100% more!
(4) AND your first shop each round has a Yordle in it!
(6) AND get 1 free rerolls each round!
(8) AND get a Yordle Grab Bag each round!
(2) Yordles gain 40 Health and 5% Attack Speed for each unique Yordle fielded. 3 star Yordles grant 120% more!
(4) AND your first shop each round has a Yordle in it!
(6) AND get 1 free rerolls each round!
(8) AND get a Yordle Grab Bag each round!
Trials of Twilight
Trials of Twilight
Gain 2 Xin Zhao. Your strongest Xin Zhao constantly strikes nearby enemies and executes enemies. After 5 player combats as a 3-star, unlock Zaahen. He replaces Xin Zhao and takes his items.
Gain 2 Xin Zhao. Your strongest Xin Zhao constantly strikes nearby enemies and executes enemies. After 2 player combats as a 3-star, unlock Zaahen. He replaces Xin Zhao and takes his items.
Trials of Twilight II
Trials of Twilight II
Gain 1 Xin Zhao and a Bloodthirster. Xin Zhao becomes an Attack Fighter. After 5 player combats as a 3-star, unlock Zaahen.
At the start of the next 2 stages, gain a Lesser Champion Duplicator.
Gain 1 Xin Zhao and a Bloodthirster. Xin Zhao becomes an Attack Fighter. After 2 player combats as a 3-star, unlock Zaahen.
At the start of the next 2 stages, gain a Lesser Champion Duplicator.
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