Sceptile (PKMN) vs Alicia (VP2): Screech twice then Slam/Strength 2HKOs. This happens before Alicia's third turn, so she can't blitz him down. (Plant Slayer weapon kinda sucks incidentally.)
Sceptile vs Kyra (PS4): Kyra 2HKOs while dodging both Giga Drain healing Overgrowth because having lots of damage control AND fire is how to beat Sceptile. Also above average speed so not 3-2'd.
Sceptile vs RAGNAR BLITZ LEBRETT (XF): Taking damage as average = Ragnar needs 3 turns to win. See Snow for why he may win even without this interp.
Sceptile vs Ragnar 'far cooler than the other Ragnar' McRyan (DQ4): Sceptile 4HKOs, instant doubles, and isn't OHKOed. Swordedge Armour just risks knocking him into Overgrowth, and he can troll with Giga Drain just fine even if you don't see this working. Would help if Ragnar could actually have a natural 2HKO here (he's notably below average damage).
Sceptile vs Raven (FE7): Sceptile is faster, 2HKOs (Raven mdur), and isn't doubled.
Sceptile vs Jude (WA4): As above, replace "isn't doubled" with "wrecks Assault Buster".
Sceptile vs Jeane (S4): Lightning resistance to the rescue.
Sceptile vs Maya (LoL2): Maya's not terribly impressive.
Sceptile vs Gryz (PS4): Crash.
Sceptile vs Cleo (S1): Fire.
Mesarthim (PKMN) vs Alicia (VP2): The fight takes forever but Mesarthim should get a chain of charm-not-wearing off before Alicia wears out Mesarthim's resources.
Mesarthim vs Kyra (PS4): Instant death at worst.
Mesarthim vs RAGNAR BLITZ LEBRETT (XF): Plenty of time for stone to kick in.
Mesarthim vs Ragnar 'far cooler than the other Ragnar' McRyan (DQ4): As above.
Mesarthim vs Raven (FE7): Again fast enough to avoid a doubling, makes Raven not very happy.
Mesarthim vs Jude (WA4): Uhhh. Mesarthim's speed spoils Assault Buster some so Jude can't 2HKO with anything, and I imagine healing and HideRune can cheese the rest of the way. Jude blocking two statuses is awful statwise, so he can't win that way.
Mesarthim vs Jeane (S4): Rubber Shoes.
Mesarthim vs Maya (LoL2): God I hate Legaia 2 statusblocking, the headaches. Uh... yeah, think I'll just pass on this one.
Mesarthim vs Gryz (PS4): Block ID, then ANYTHING spoils Gryz, whatever her stat hit. GlassShield most elegantly I suppose.
Mesarthim vs Cleo (S1): Thermal tank.
Marica (Tierkreis) vs Alicia (VP2): If I see Alicia as vulnerable to unbalance then Marica wins with Toppling Blow. If not... eh, she should doubleturn menu use eventually, and can heal indefinitely herself until then, then 2HKO. Havoc Cyclone not being an element Alicia blocks helps.
Marica vs Kyra (PS4): She's a bit faster (+0.6 SD instead of +0.44) and the above strategy involving Toppling Blow works: knock Kyra over, she misses two turns due to being slower, use the two resulting turns for 2HKO Havoc Cyclone. Granted, this is turn 2, but not like Kyra accomplishes anything with one turn.
Marica vs RAGNAR BLITZ LEBRETT (XF): Huh, Marica's pretty impressive, slugging down Heavies here with no real issue.
Marica vs Ragnar 'far cooler than the other Ragnar' McRyan (DQ4): Healers mock Swordedge Armour hype, and in general she controls this.
Marica vs Raven (FE7): Marica falls just shy of the speed required to stop Raven from doubling to me. However she's above average durability so she survives a double just fine, and two Havoc Cyclones sends Raven to the cleaners. He could opt for Hand Axes, but he doesn't double with those, so that doesn't accomplish anything.
Marica vs Jude (WA4): Jude has time for two Rapid Attacks then a boosted Assault Buster, which against Marica's speed is about 1.1x PC KO damage, better than her ~105% pdur.
Marica vs Jeane (S4): Marica has pretty good mdur (~1.25) but Jeane hits harder than that.
Marica vs Maya (LoL2): If Maya can both resist topple and wind she has a decent case I guess... though maybe she just runs out of resources even then?
Marica vs Gryz (PS4): Crash.
Marica vs Cleo (S1): Cleo misses the 2HKO even with Explosion, never mind she'd probably need to enforce a heal-lock with her physical to win.
Mesarthim 9-0 (go to Heavy, please)
Sceptile 7-3
Marica 7-3