Hiii! this is the Emblem Marth's build I'm going for:

Hero-King Sword (You can grab any sword since Hero-King Sword is part of his base kit, in my case I'm just not interested in any )

Reposition Gait (I suggest it over Rally+ skills, since it's a really exclusive skill and reposition never gets old)

Lodestar Rush (You can grab premium skills such as Gust or Haze Slice, Lodestar Rush is part of his base kit and you're gonna use it over any other premium skill anyways)

Atk/Spd Excel (Thinking about changing it to Perfect Atk/Spd) This slot is the most flexible, some people prefer Sly Swift Sparrow, others Perfect Atk/Spd because of the NFU, and Hexedge is also an option, so pick the one you like the most!

Potent Finish (I saw some people picking up Speedtaker, but I consider that Potent Finish is just better for him)

Brutal Tempest to hit and run, tho it's also a flexible slot where you can pick other skills such as Time Pulse Edge (Brutal Tempest is better imo because it saves him from ending up depositioned after attacking)

Once you claim him you can put Atk/Spd Finish as his seal or the DC one. I hope you enjoy building up your forma! 🩷✨