That's how I would have it.I would not mind that, or similar to 3.5e warlock invocations, even if magical, they are always on
A ranger instead of spells would have:
4 arrow of slaying
2 arrows of ensnaring strike
1 goggles of the night
1 ring of animal influence
1 ring of pass without trace
2 potions of healing
That's more due to encounters per day.IE: the signature Pass without trace, rangers need to wait 5 levels for it, while druids need only 3 levels.
again, druids, better rangers than rangers
Ranger was suppose to afford PWT whereas PWT eats major offense and defense for a druid.