Hello Kingsilie, so I recently got the new "Hail Hydra" (Clever Pun) pet, and decided to train it up.
It's first ability, one of the new "Happiness Abilities", was rare (two dots) and required a grand total of 30 Talent Tokens and 10 Harmonious Tokens.
From training other pets, I have earned 2 talent tokens and 1 harmonious token. I think it would be a good fix to not make these talents so expensive, as I don't really want to have to train a bunch of useless balance pets just to unlock a talent. Please, if you could, fix this issue, or once the "Pet Promonade" comes out, make sure it gives more Tokens than one for every milestone reached.