I decided to run calcs to see how feasible setting up on CBed Pursuits is, and you might want to avoid setting up all the way due to the ever-increasing chance that one of those Pursuits will crit and OHKO Latias.Should either use Pursuit, Latias can easily begin to set up six Calm Minds, fearing nothing but a critical hit.
+3 Dragon Pulse vs 248 / 0 Scizor: 45%-53% (2HKO with SR down)
+3 Dragon Pulse vs 252 / 0 Tyranitar: 43%-51% (you might as well say this is a 2HKO with SR down).
+2 Dragon Pulse also has a decent shot of 2HKOing after SR + Spikes.
CB Pursuit does a bit more than 25% on average for both. For simplicity's sake I'm bumping it to 25%
Calm Mind (100), Pursuiter switches in
Reflect Pursuit (75) <- Latias' current Health
CM Pursuit (50)
Recover Pursuit (75)
CM Pursuit (50)
Recover Pursuit (75) (reflect wears off)
Reflect Pursuit (50)
Recover Pursuit (75)
Dragon Pulse (does half of TTar/Scizor's remaining health) Pursuit (50)
Dragon Pulse KO
(8 Pursuits = ~40% chance to crit)
Calm Mind (100), Pursuiter switches in
Reflect Pursuit (75) <- Latias' current Health
CM Pursuit (50)
Recover Pursuit (75)
CM Pursuit (50)
Recover Pursuit (75) (reflect wears off)
Reflect Pursuit (50)
Recover Pursuit (75)
Dragon Pulse (does half of TTar/Scizor's remaining health) Pursuit (50)
Dragon Pulse KO
(8 Pursuits = ~40% chance to crit)
Calm Mind (100), Scizor switches in
Reflect Pursuit (81) <- Latias' current health
Calm Mind Pursuit (62)
Calm Mind Pursuit (43)
Recover Pursuit (74).
Dragon Pulse (does half of Scizor's remaining health) Pursuit (55). Reflect wears off.
Dragon Pulse KO (61)
(Or you could set up a Reflect, Recover twice, Dragon Pulse)
5 Pursuits = ~28% chance to crit.
Reflect Pursuit (81) <- Latias' current health
Calm Mind Pursuit (62)
Calm Mind Pursuit (43)
Recover Pursuit (74).
Dragon Pulse (does half of Scizor's remaining health) Pursuit (55). Reflect wears off.
Dragon Pulse KO (61)
(Or you could set up a Reflect, Recover twice, Dragon Pulse)
5 Pursuits = ~28% chance to crit.
tl;dr Don't set up 6 CMs on them unless you have to. Given that 8 Pursuits already have a 40% chance of critting, getting greedy with the CMs gives this set a conflip's worth of surviving.