Fire Type Emblem: Main thread

Priscilla: Definitely would learn Electroball seeing as it allows you to attack diagonally. Maybe consider swapping Nuzzle? I know the guaranteed paralysis is nice but as Lutin and Lickitung demonstrated last battle, it doesn't always work lol. Swift is also a nice move to consider since it gives you a long range move. Remove Growl for it?

Rinnia: Both Calm Mind and Draining Kiss are awesome.... Hard part is I have no freaking idea what I'd suggest to remove. I suppose Draining Kiss would replace Disarming Voice being that its one Fairy move for another. As for Calm Mind, the utility of Teleport has come in handy when bypassing obstacles but boosting your Special stats outweighs that I think.

Elwind: Swords Dance is a glorified given, although I'm not sure what I'd remove. Pursuit seems to be the odd move out given the circumstances. As for Slash, Feint would be the odd move out, although came in extremely handy this past battle due to its Rn 1-2.

Nah: Slash replacing Take Down is a given no?

Alex: Ignore Take Down. Recoil moves just don't work unless you have Rock Head ability.

WooWoo: Will-O-Wisp goes hand in hand with Hex but I think that's one move I'd pass on. Ominous Wind however is one I'd definitely consider but for which move to replace.... Suppose Haze is out?

Lily: Up to you if you want Stun Spore. I think Sleep Powder did much better don't you think?

Susato: Secret Power is a must as I see it if you want to fight. Growl would be the move to replace. Not so sure on Attract though. Typically we don't want you on the front lines, much less flirting with the enemy.

Meta: Eh if your back, then these moves are godly good as both gain STAB!!! Quick Attack and Pursuit would be the moves I'd replace. However, if you evolve, then you lose STAB on Wing Attack so keep that in mind.

Krakonos: I like Chip Away but Cut is permanent and your other moves help you recover life and boost defenses. Feint Attack is also one of your strongest attacks that also counters Ghost Pokemon(which you couldn't attack with Normal moves). Your call here on what you want.

Cuddles: Mist basically prevents anyone affected from having their stats lowered. Its happened a few times but its up to you if you want it. I don't think you need another Water move though unless you want to replace Whirlpool or Astonish with Brine.

Felix: I'd pass on Roar and Swagger.

Hit: Agility would basically double your speed while its active, allowing you to traverse the battlefield and hit foes that may seem out of reach while Quick Attack is a non-stab Rn 1-2 move that has infinite uses. Your call on either of them but I'd lean towards replacing Pluck with one of those moves(Agility would be my pick).

Mercy: Its a non-stab move but has the benefit of ignoring Accuracy/Evasion. Hence its a guaranteed hit move for the most part. Seeing as you have Mimic, replace Copycat?

Mags: Mirror Shot, despite its horrible accuracy, is a Steel move and we need Steel moves lol. Thinking Thunder Wave or Light Screen. As for Metal Sound, I'd pass but if you want it, go ahead and take it.

Coral: YAY a Fairy move. I take it Rollout gets the yank seeing as Defense Curl has a Defensive purpose?

Linus: The only reason you'd add Trick or Treat is to make a target more vulnerable to being hit by Ghost and Dark Type moves. If you do choose to have it, I'd replace Worry Seed.

Robin: Psyshock is a given and I'd replace Rollout for it. You shouldn't be on the front lines to need Recover but if you want it, I'd replace Reflect.

Lutin: Feint Attack is a can't miss Dark move(hence I'd replace Bite unless you love the chance to Flinch) while Baton Pass adds a bit of strategic flare that we haven't had until now. It basically allows you to swap places with anyone on the map, thereby allowing someone who couldn't do anything to affect the course of battle on this round to do so while also acting as an Emergency Evacuation move. In other words a great move to have but what to replace.... Taunt I suppose would be the odd move out.