The party is about to face in battle a beholderkin, an overseer (Lord of Madness 139–40) and its allies:
- a beholder (Monster Manual 25–7)
- 2 directors (LoM 137–8)
- 7 spectators (LoM 140–1)
- 8 gauths (MM 26)
The PCs are tier 4 and level 11 with typical wealth for their level. The PCs include an adept/church inquisitor, a fighter/rogue/master thrower, a ranger/halfling outrider, and a warlock. They will have the assistance of an NPC pirate crew that consists of the captain (an ECL 11 bard/marshal/legendary captain), the first mate (an ECL 11 ninja/scarlet corsair), the big guy (an ECL 8 barbarian/war hulk), the ship's mage (an ECL 6 warmage), and a handful of other crew members who probably won't matter in a fight against such creatures.
The PCs plan to suppress temporarily the overseer's domination of the blue with protection from evil spells and make 11-min.-at-a-time alliances with the blue and its army in hopes that the goblins'll wreck a few eyeball monsters for the PCs.
As a being of vast intellect (Int 20!), the overseer has likely considered this eventuality and has contingencies for its contingencies for when the goblins eventually revolt. (Some of these contingencies might involve its major creation eye ray? See below.)
I expect that the actual beholder will be slain—perhaps by the overseer itself—in the ensuing goblin-beholder(kin) battle. (The overseer's plan all along to remove its potential rival anyway.) So after the party dispatches the remaining lesser beholderkin, it'll be time for the PCs to go mano-a-ojo against the overseer itself.
And it's for this final battle that I want to maximize the overseer's tactics. I can do that for everything that the overseer can do (which is a lot) except that I'm struggling with the overseer's major creation eye ray.
The description of the overseer's major creation eye ray says that an overseer uses it to create for itself or its minions useful miscellaneous gear. Lords of Madness has some beholder magic items, but it makes no suggestions as to what sort of mundane items an overseer would find useful, be it in battle or just to have sitting around for anywhere from over a day (if vegetable matter) to only 90 seconds (if a rare metal). (Its caster level for its eye rays is 14.)
An RPGNet thread has a list of 101 uses for the major creation spell, but many of those suggestions assume a mundane humanoid is employing the spell rather than an extremely powerful magical tree-eyeball monster.
How would an overseer in this situation employ optimally its major creation eye ray?
Note: an overseer's major creation eye ray is a supernatural ability which requires a full round action (which replaces the standard 10 minute casting time of the spell). Since the eye rays are supernatural, they cannot be disrupted and never require concentration checks. So, I am mainly looking for uses during combat.