Game where grinding is inconsequential?
I'm looking for a Monster Taming game where grinding is inconsequential. As in, the strength of characters has no/little relation to how much they are used. Or another way to put it, I want to freely be able to make alterations to my load out without being greatly penalized for swapping in something I didn't put time into already.
The defining feature of various characters should be innate, not based on how much time/resources I have invested into them.
For clarity, since I have inquired about something similar in the past and had easy games recommended. I am not looking for a game that is easy and thus makes grinding is unnecessary. I likely would prefer a more difficult game (though that's not a requirement), so long as it tests your team composition and tactics, rather than offering the out to just grind.