Beecham (Suiko3) vs Seth (FE8)- I'm going back and fourth. Beecham just misses the double and being 2HKOed by Seth. Eh. Will look at this more. EDIT: Beecham's got better HP than I thought. That should be enough, combined with Seth's surprisingly not great physical durability.
Beecham vs Nara (DW4)- This on the other hand requires no thought.
Beecham vs Lelei (Suiko5)
Seth vs Nara- Nara HP.
Seth vs Lelei- Lelei everything.
Nara vs Lelei- Oh christ. Lelei heal locks here. How? HOW?! EDIT: The heal lock's a fairly close thing. Lelei's about half average damage. This wouldn't heal lock Nara based on the stat topic, but! She's 3~ish levels or so over where she should be. That knocks her down to about .42 PC HP. That still might just avoid the heal lock, if not for her below average defense -in spite of Metal Babble armor-. I still could bloody be convinced that Lelei misses the 2HKO though and loses horribly, but that is more a comment about how completely awful she is at literally everything, since you know.. she's a fighter and I have to think about her ability to heal lock Nara. Fail.
Assuming Nara just isn't heal locked: She is using Infermost and flipping between that and healing. Lelei can resist and not null wind with her armor, so that puts pressure on her awful speed. A double at the right point is a serious problem for Nara, and she could very well run out of MP while flailing away. Lelei may want to say fuck it and go for full wind blocking, Sleepmore is more defensive than anything else and doesn't really let Nara inflict any damage. I mean, Nara physicals. They're like Cristo's physicals but slightly stronger, and we know how effective those are.