Feral seems to get the short end a fair bit. While I don't play it too much myself, I like cats and believe the spec could do with an overhaul and/or adjustment.
- Shred's energy cost should be dropped to 20
- Rake's energy cost should be dropped to 30
- Feline Swiftness should increase energy regen as well as movement speed
- Sabertooth should be baseline
- Predator should be baseline
- The following should be baseline: Predator, Open Wounds (Legion artifact trait), Gushing Lacerations (Azerite trait), Jungle Fury (Azerite trait).
From my experience, Feral can get energy starved, which can obviously inhibit the flow of battle. No one likes waiting for even a basic spell/skill to be available (one reason I like Fury and Havoc). My aforementioned suggestions could possibly improve it, but I'll leave that to those who play Feral more often than I do.