Note that many changes cannot be easily datamined, such as functionality changes, bugfixes, or mode-specific balance modifiers. Sometimes changes can also take a couple days to show up, even if Riot has already announced them.
Changes from today:
Champions:
Azir:
- no these aren't typos, but they might not be intended to ship given they don't resemble the 13.4 changes at all
- stats:
- base health: 622 --> 550
- mana: 380 +36 --> 320 +40
- AD: 52 +2.8 --> 55 +3.5
- attack speed base/ratio: 0.625 --> 0.694
- attack speed growth: 3% --> 4%
- P:
- tower disintegration time: 60s --> 30s (this one appears to be tooltip only, it currently still lasts 60s)
- tower cooldown: 180s --> 90s
- tower damage AP scaling: 15% --> 50%
- Q:
- rescripted to use data values
- damage: 70-150 +30% AP --> 60-120 +45% AP
- cost: 55 flat --> 60-80
- W:
- no longer gains attack speed passively nor when summoning 3+ soldiers
- soldier damage: 50-150 breakpoints +55% AP --> 50-90 by rank +60% AP
- W cost: 40 --> 30
- E:
- cost: 60 --> 45
Jarvan IV:
- someone changed a string value instead of a string key for "passive attack speed", so Jarvan E now thinks it gives "soldier base damage" from Azir's change
Nidalee:
- has new VO
- P hunt/brush haste: 10% --> 20%
- haste toward enemy champions: 30% --> 60%
- reminder:
- both hunt and brush haste can stack when away from champions: 20% --> 40%
- but also cannot exceed a combined value of: 30% --> 60%
- R no longer tagged as Ultimate
- R cooldown: 3s --> 1.5s
Tahm Kench:
- R internal spell is now tagged as Ultimate and ImmobilizingCCSpell (previously only the wrapper had these, this might fix some bugs somewhere)
ARAM:
- two new turret items added:
- Fortification (same name, but different from existing version): "Blocks 30% damage of incoming damage [sic]. This effect begins when the Outer Tower is destroyed, and expires after 60 seconds."
- only the inner/inhib turret has this
- Tower Power-Up: "Damage Amplification: This tower gains bonus damage every minute. Ice Plating: This tower gains bonus armor and magic resistance every minute."
- all turrets have this one
- Fortification (same name, but different from existing version): "Blocks 30% damage of incoming damage [sic]. This effect begins when the Outer Tower is destroyed, and expires after 60 seconds."
- all turrets now also have the "self destruction" mechanic from clash
- unsure if these changes are meant to go into the normal queue too or just PBE testing for ARAM Clash, but they're in custom games regardless