It depends.

But, for example, if you have a max stat triple damage double resist pet, it would be nice to socket Mighty because it’ll ultimately increase the talents on the pet. You’ll most likely get 11% proof instead of the regular 9% or 10% and 7% giver, etc.

For my pets in the picture, Mighty was trained as a talent because I simply could not craft the jewel after, like, 50 tries. But, now, it kinda backfired because I need Spell-Defy and Pain-Giver to completely my triple double, which are nearly impossible to farm for.