Yes, I think you're right about the tactics. Let's just tweak the Monarch's. Here's a go, with changes from the Monarch in red:
The master scorpion is an ambush hunter, hiding beneath the sand to attack victims who wander too close. An active master scorpion normally casts alarm, blur and detect magic every minute or two; its copious use of silent alarms means it often knows potential victims are nearby long before the creatures notice the scorpion. Given time, it will cast spell resistance on itself before combat - especially if it detect magics on its opponents.
A master scorpion typically attacks from behind its retinue of scorpion followers, using them as protection while it uses its psionic abilities. They typically open combat with a psychic blast or greater shout, trying to stun as many opponents as possible, even if that would affect some of their followers. Over the next rounds, it attacks with its natural weapons or a psionic power as the circumstances dictate. A master scorpion's favorite psionic combat tactics are using vampiric touch on grappled opponents to absorb damage from attacks, dominating enemies and ordering them to kill their own allies or submit to being eaten, or releasing another psychic blast or its greater shout.
A master scorpion is more likely to flee from superior opponents than a monarch scorpion, since they are more cunning and selfish. On the occasions it decides to retreat, a master scorpion usually just runs away as fast as it can.
Well for a start the master scorpion has a different set of SLAs for psionics so some of those ought to change. i.e
displacement instead of
blur.
Hmm… how about:
A solitary master scorpions is an ambush hunter, hiding beneath the sand to attack victims who wander too close. However, master scorpions are seldom encountered without a retinue of assorted scorpion creatures under their control. Normally the master scorpion will send its minions in to engage the enemy while making psionic attacks from behind their ranks.
An active master scorpion normally casts
alarm,
stoneskin and
detect thought or
detect magic every minute or two; its copious use of silent
alarms means it often knows potential victims are nearby long before the creatures notice the scorpion. Given time, it will cast
spell resistance,
displacement and
lesser globe of invulnerability on itself before combat.
They typically open combat with a
psychic blastt or
greater shout, trying to stun as many opponents as possible - they like to
psychic blast opponents fighting monstrous scorpion minions since vermin are immune to the effects of the
blast. Over the next rounds, the master scorpion attacks with its natural weapons or a psionic power as the circumstances dictate. It's favorite psionic combat tactics are using
vampiric touch on grappled opponents to absorb damage from attacks,
dominating enemies and ordering them to kill their own allies or submit to being eaten,
telekinesis to violently reposition an enemy, or releasing another
psychic blast or its
greater shout. Master scorpions usually reserve
enervation for a particularly threatening opponent.
A master scorpion is more likely to flee an unfavorable combat than a monarch scorpion, since its cunning and selfishness usually outweigh its bloodlust. If it does decide to retreat, the master normally flies off in
gaseous form or simply runs away as fast as it can. In either cases it leaves any surviving minions to cover its withdrawal.
While writing the above I realized we've lost an important SQ that was added to the master scorpion:
Scorpion Master (Su): A master scorpion can communicate with any scorpion or scorpionlike creature and has a +4 racial bonus on Charisma-based checks and mind-affecting powers against scorpions and scorpionlike creatures. For the purposes of this power "scorpionlike" includes magical beasts and monstrous humanoids who are part scorpion, such as a scorpionfolk, skorpio or stinger.
Furthermore, a master scorpion can choose to have its mind-affecting abilities affect mindless scorpion creatures such as monstrous scorpions despite such vermin normally being immune to mind-affecting powers. It can elect not to affect mindless scorpion creatures with a mind-affecting ability if it wishes to, allowing it use an area-effect power like
psionic blast on monstrous scorpions fighting its enemies without harming its minions with the attack.
That's a bit wordier than I think the original was, but I can't recall the precise phrasing and I like the added detail.