User:Eradev/TMRanking

Preface

 * This ranking list is based on how useful the reward will be in general. The higher the tier, the more you should prioritize getting it. Some Trust Mastery Reward (TMR) are very strong on paper, but aren't that useful in practice, or have a very limited use scope.
 * This list assumes you will farm TMR with a macro, or manually (sick!).
 * I could be considered as a "whale" so my point of view might be different than yours. Time is the major constraint for us, and not unit availability.
 * You might disagree on some points as everyone approach the game differently. Killing everything in one turn is fun (OTKO), but it gets really boring. I like having a mix of offensive and defensive TMRs so I can use various units and methods to clear certain stages. You'll probably won't need this list if you are OTKO'ing everything anyway.
 * Explanation doesn't take in account event items as not everyone played through all of them. It does have time limited units, but you can just ignore them if you don't have access to it.

The different tiers

 * S usually means it's a best in slot (BiS) TMR. These are the ones you should focus on first, and you shouldn't fuse duplicate units together.
 * A are good TMRs that you should also aim to get. They're generally versatile so they won't be wasted even if you decide to change your party lineup. You shouldn't fuse duplicate units together.
 * B are good to have TMRs. Sometimes they'll rival with A tier's TMRs, but will be more situational. Most of these are still worth farming using single units if they're from bases, or time limited units. Otherwise you might want to start farming using multiple units.
 * C are TMRs you should only get when you have a specific build in mind. These are generally very situational. You shouldn't farm using a single unit.
 * D are TMRs which you shouldn't farm for. They'll mostly gather dust in your inventory. Fuse duplicate units together for the 5% if you want the TMR.
 * E are TMRs you don't even have to keep one of; they'll probably be useless 99.99% of the time.

Of course, the fusing recommendation depends on how far you are in the game and unit availability. For example, when you already have five Dual Wields and a few Genji Gloves, you can safely begin fusing your Zidanes together as you'll probably have other, more useful TMR to farm. You might also not have multiple identical C tier units for farming, and that's fine.

Ultimately you're the one that'll decide if it is worth spending X number of hours farming for a TMR rather than another.