New Class & Spell Changes Datamined - Season of Discovery Phase 4 PTR

wowhead.com:

We've datamined all of the new class and spell changes from the latest build of the Season of Discovery Phase 4 PTR!

Season of Discovery Phase 4 PTR Development Notes

Rune Engraving (1)

• Engrave your cloak with the Improved Swipe rune:
  
  While in Cat Form, your Swipe ability becomes Swipe (Cat), and while in Bear Form, your Swipe ability strikes up to 3 additional enemies.7 additional enemies.
  Swipe (Cat)
  Swipe nearby enemies, inflicting 250% weapon damage and generating 1 combo point on your current target.
  

Rune Engraving (4)

• Engrave your belt with the Kill Shot rune:
  
  You attempt to finish off a wounded target, firing a ranged attack dealing 100% weapon damage plus \. Kill Shot has no minimum range. Kill Shot's cooldown is reset if used on an enemy that has 20% or less health.
  Category changed from Abilities to Uncategorized
• Engrave your cloak with the Hit and Run rune:
  
  You gain 15% movement speed for 4 sec after using Raptor Strike.
  
• Engrave your cloak with the Improved Volley rune:
  
  Reduces the mana cost of your Volley by 50%, reduces its cooldown by 100%, and it no longer suffers pushback from damaging attacks. Volley also deals 3% of your ranged Attack Power as additional damage each time it deals damage.
  
• Engrave your cloak with the Resourcefulness rune:
  
  Reduces the mana cost of your Traps by 100% and their cooldowns by 40%.
  

Rune Engraving (3)

• Engrave your boots with the Brain Freeze rune:
  
  Your Frost damage spells with chilling effects have a 15%20% chance to cause your next Fireball, Spellfrost Bolt, or Frostfire Bolt spell to be instant cast and cost no mana.
  
• Engrave your bracers with the Balefire Bolt rune:
  
  Unleash a reality-distorting burst of raw magic at your enemy, dealing \ to \ SpellfireChimeric damage. Each time you cast Balefire Bolt, the damage of your