http://thpp.supersanctuary.net/wiki/SatoriType:
HeartAbility: Trace
Hp: 95
Atk: 60
Def: 80
SpAtk: 120
SpDf: 85
Spd: 90
Sometimes I think Satori really is hated (T_T), with a respectable 95/80/85 bulk and 120/90 omgsweeper offensive stats alongside monoheart typing, trace, and access to manabeam there's really no other reason that this little mind reader is as underused as she is.
Sub/CmSatori @ Salac Berry
Ability: Trace
EV's:252 SpAtk/252 Spd/4 SpDf
Nature: Modest (+ Spatk/- Atk)
-Substitute
-Calm Mind
-Mana burst
-Signal beam
Usage: After scouting and removing her counters, pop out this adorable little threat on a weak or resisted/immuned (trace <3) special attacker set up and roll over teams. Anyone who's played against this set knows just how terrifying this thing gets with a CM or two under its belt and after triggering salac satori out speeds + speed 140's.
Counters: Monoheart naturally walls manabeam, but monoheart also cant do much to satori unless they're packing energy ball so no worries, priority has to deal with substitute, ditto for status making all of the above checks to satori at best and speed bumps at worst. On the other hand phasers counter satori like no other...unless she's copied gatekeeper/soundproof. Yup,
satori can bypass almost all of her counters with the right setup, thankfully she really only gets 1 shot at setting up with a single layer of spikes on the field and needs a few turns to get rolling so feel free to just bum rush her.
Dedicated counters: Ad Meiling, Suika, Physical D Mokou. These 3 are about as close as you get to hard stops to satori.
Support: Satori works well with just about any special hole puncher or thing that makes Yoshika want to roar. Magic stones cover pretty much all of her checks and obviously spikes are useful, wish support is an option for long games because satori lacks recovery but unless your playing against full stall its rarely needed.
Options: Are limited due to recollection being broken on shoddy, you can swap out mana burst for T bolt or ice beam to hit a few annoying mons (Z fairy) but thats about it. If your playing on cart she can run a nice all out attacker+transform set with psycho boost though.