Testing out some heals on Eos, I noticed that she seems to be healing me with Embrace at around 50% the strength of a Physick. However her Embrace spell has a listed potency value of 300, and Physick has a potency value of 400. So I would expect it to heal for 75% of a Physick. The Mend and Maim traits state that they apply to pet abilities.

On the other hand, Eos' Whispering Dawn spell tick for about a third of her Embrace. Given Whispering Dawn has 100 potency and Embrace has 300 potency, those match up to each other, but still doesn't match mine.

Do pets have an entirely different healing formula? Doing some quick healing samples, I would expect the tooltips to instead list Embrace as ~200 potency and Whispering Dawn at ~65 potency, rather than the 300 and 100 they're at right now.

Also queued underleveled Sastasha on a lark. Eos was using Embrace for ~250 potency relative to mine.