General reminder that many changes cannot be easily datamined, such as functionality changes or bugfixes, and are not always final.

Champions

Diana

• E reset cooldown:  0.5s --> 0.25s

Kai'sa

• The change to R cast range in 14.4 was not applied to the range indicator, despite functioning correctly otherwise. Now the range indicator has been updated to match.

Seraphine

• stats:
  • mana growth:  50 --> 25
  • mana regen growth:  0.4 --> 0.95
  • base AD:  55 --> 50
  • base speed:  325 --> 330
• P:
  • damage per note:
    • base:  5 / 10 / 18 / 30 @ 1 / 6 / 11 / 16  -->  4-25 linear
      • comparison image
        
        tldr mostly buff or even early-mid but nerf super late
    • AP scaling:  5% --> 4%
    • damage to minions:  x3.0 --> x1.0
    • damage from ally notes:  x0.25 (unchanged)
• Q:
  • base damage:  55-155 --> 60-160
  • missing health amp:  x1.5 --> x1.4 x1.6
    • there's some conflicting data here, another place says x1.5 --> x1.6, but the x1.4 seems more "trustworthy"? (so much for that)
    • edit: now that PBE is back up, I can confirm the x1.4 is only being used by the tooltip, the actual change is x1.6
  • cooldown:  10s-5s --> 8s-6s
  • cost:  65-85 --> 60-100
  • missile speed:  1200 --> 1300
• W:
  • base shield:  50-150 --> 60-160
  • speed AP scaling:  4%% --> 2%%
  • cooldown:  28s-16s --> 22s-18s
  • cost:  80-100 --> 70-90
• E:
  • damage:  60-200 +35% AP  -->  70-190 +50% AP
  • CC duration:  1.25s constant --> 1.1s-1.5s by rank
  • minion damage:  x1.0 --> x0.7
  • cooldown:  10s constant --> 11s-9s
  • cost:  60-80 --> 60 constant
• R:
  • AP scaling:  60% --> 40%
  • cooldown:  160s / 130s / 100s  -->  160s / 140s / 120s