1) First stun -> if I'm lucky I use Shield Probe and ride it out (my health is at 30-40% now)
2) Second stun -> I use my stun breaker while I spam Surgical Probe
3) I use Debilitate (and pray that they don't have their stun breaker)
Flash grenade them here if they trinket debilitate. Definitely don't waste a global on corrosive dart, spend that time either fake casting or eating an interrupt on kolto infusion/injection (or on surgical probe depending on your hp). Cast the one that didn't get locked after they blow their interrupt. You're at full resolve after their opener + stun and since they can't trinket both debilitate and flash grenade, you should be able to live for a considerable amount of time.