[dafier]

To be clear. The focus items do not, at least what I know, raise the damage of any pet.

The < 50 focus items on < lvl 50 pets give the pets ~20% more health. That is the ONLY affect it does. Oh, it makes them visually larger too.

The staves of elemental master make the pet visually larger and raise the level of the pet by 1, so it's possible to have a level 49 pet with the level 57+ pet spells.

The level 53 pet does have a maximum level of 45 like it says in the wiki and a lowest level of 41. The level 49 pet spells have a maximum level of 41 and a lowest level of 37.

Hope this helps.