Enemy: Forest sprite 2 star x2, post behemoth
Pet Elements: Air
On first turn:
Pet Ability 2: 3 star 63.40%
Pet Ability 3: 3 star 34.54%
Pet Ability 4: 3 star 27.99%

Stats after battle:
Pet Ability 2: 3 star 63.42%
Pet Ability 3: 3 star 34.55%
Pet Ability 4: 3 star 28.00%

Usage:
Pet Ability 2: I
Pet Ability 3: I
Pet Ability 4:

Enemy: Nightfall Captain 4 star, Level 73
Pet Elements: Air
On first turn:
Pet Ability 2: 3 star 63.47%
Pet Ability 3: 3 star 34.59%
Pet Ability 4: 3 star 28.04%

Stats after battle:
Pet Ability 2: 3 star 63.54%
Pet Ability 3: 3 star 34.66%
Pet Ability 4: 3 star 28.13%

Usage:
Pet Ability 2: 2
Pet Ability 3: 1
Pet Ability 4: 1

Sorry for the no before battle end stats xD both battles i killed them too quickly

Enemy: Crazed Druid 4 star, Level 73
Pet Elements: Air
On first turn:
Pet Ability 2: 3 star 63.65%
Pet Ability 3: 3 star 34.76%
Pet Ability 4: 3 star 28.23%

Stats after battle:
Pet Ability 2: 3 star 63.73%
Pet Ability 3: 3 star 34.83%
Pet Ability 4: 3 star 28.31%

Usage:
Pet Ability 2: 3
Pet Ability 3: 2
Pet Ability 4: 1

Gains seem to be much more for that one

Enemy: Lvl 70 2 star enemy, Pet in question skipped turns the entire battle
On first turn:
Pet Ability 2: 3 star 63.73%
Pet Ability 3: 3 star 34.83%
Pet Ability 4: 3 star 28.31%

After Battle
Pet Ability 2: 3 star 63.74%
Pet Ability 3: 3 star 34.83%
Pet Ability 4: 3 star 28.32%

Enemy 2 star blue nightfall dude

On first turn:
Pet Ability 2: 3 star 63.76%
Pet Ability 3: 3 star 34.85%
Pet Ability 4: 3 star 28.34%

Last turn before battle end

Pet Ability 2: 3 star 63.76%
Pet Ability 3: 3 star 34.89%
Pet Ability 4: 3 star 28.34%

After Battle
Pet Ability 2: 3 star 63.76%
Pet Ability 3: 3 star 34.90%
Pet Ability 4: 3 star 28.34%

Ability 3 uses: 8

Thanks to Painteventer, Kaita & 18eities for their data submissions. I think I have that finished as far as the current ability.

To anyone else, please tell me if you think my formatting could use improvement, and how. I understand not everyone will think of this the same way I do, but I want people to understand what I mean and how it impacts them.

Unlocked.

Thanks Krinadon. Went ahead and added The Maws of Madness Update to post 2, which should more accurately reflect what it looks like from your perspective. Though, it dissatisfies me due to the presence of non-whole numbers. Ah well.