Here's my proposed Sothoryos preparations in plan form. What have I left off, and what needs to be changed?
[] Sothoryos Expedition Preparations
-[] Ask Yss what, if any, unexpected dangers the expedition is likely to encounter.
-[] Malarys will prepare a specialized spell loadout with Sothoryos in mind. It can be found
here.
-[] Bronn will be retrieved from his mission with the Dothraki and asked to accompany those going on the Sothoryos Expedition.
-[] Before departing Sorcerer's Deep, Vee will cast an Heroes' Feat spell (using two 5th level spell slots), which Viserys, all of the Companions, Bronn, and Teana will attend.
-[] The group will carry more than enough Alchemical
Vermin Repellent to protect everyone for the full duration of the expedition and sufficient Elysium Fruit to cure fatigue throughout the expedition, with more in reserve should it prove necessary. They will each carry a dozen vials of Alchemist's Fire, should it prove necessary to engage in wide-scale deforestation or extermination of local wildlife.
-[] Richard will lend the expedition group his Corpse-Ferrying Bag, they will be issued a pair of Sending Stones to supplement the bags of attuned obsidian sand they will each carry, and Lya will lend them the following spell scrolls: Comprehend Languages(x4), Cure Light Wounds(x10), Keen Edge(x1), Lesser Restoration(x2), Panacea(x4), Plane Shift(x1), Restoration(x1), and Teleport(x1). They will also carry the magic bedroll with them for emergency spell recovery.
-[] Immediately prior to departure (NOTE: Irony is included in all buffs not placed on specific people);
--[] Lya will place Irony in a Smoky Confinement bottle for easy transport after he is buffed. She casts and maintains Harmonic Chorus on herself, then uses Mass Aid, Moment of Greatness, and Life Bubble on each member of the expedition, Barkskin on Bronn, Viserys, and Richard, Shield of Faith on Bronn, Richard, and Maelor, Greater Shadow Enchantment to place a Grand Destiny spell on Viserys, and Owl's Insight on Dany, Malarys, and Vee.
--[] Tyene will place a Nondetection and Blindsight spell on each member of the expedition, while Waymar places Resist Energy(Acid) and Resist Energy(Fire) on them. For Viserys, he uses Resist Energy(Cold) rather than Resist Energy(Fire).
--[] Vee casts Barkskin on herself, Irony, Dany, and Malarys, Shield of Faith on herself and Irony, and Tyche's Touch on Irony, then casts Invisibility Purge.
--[] Maelor casts Shield and Child of the Dark on himself.
--[] Dany casts Entropic Shield, Shield of Faith, Sign, and True Seeing on herself, then Greater Magic Fang on Viserys.
--[] Malarys casts Defending Bone, Magic Circle Against Chaos, Entropic Shield, Shield of Faith, Sign, Stone Body, and True Seeing on himself.
--[] Viserys casts Heart of Water (using his PoSK), Mirror Images, Scintillating Scales, Shield, and Ancestral Awakening to learn the Merciful Spell Metamagic feat. He will then cast Arcane Spellsurge before Teleporting everyone to Sothoryos.
-[] Immediately upon arrival in Sothoryos, Irony will be released from his bottle and released into Vee's care. Malarys will then place a Bear's Endurance spell Irony.
Level 0 (6/day):
Cure Minor Wounds,
Detect Poison,
Detect Magic x2,
Message x2
Level 1 (4+2+D/day):
Barbed Chains x2,
Endure Elements,
Entropic Shield,
Shield of Faith,
Sign,
Detect Secret Doors(D)
Level 2 (4+2+D/day):
Bear's Endurance,
Boneshaker x2,
Close Wounds,
Defending Bone,
Sound Burst,
Detect Thoughts (D)
Level 3 (4+1+D/day):
Alter Fortune,
Control Vermin,
Dispel Magic,
Mass Resist Energy,
Tongues,
Magic Circle Against Chaos (D)
Level 4 (4+1+D/day):
Assay Spell Resistance,
Blessing of Fervor,
Repel Vermin,
Sound Lance,
Phantasmal Killer(D)
Level 5 (3+1+D/day):
Boneshatter x3,
Triadspell,
True Seeing (D)
Level 6 (2+1+D/day):
Greater Dispel Magic,
Stone Body,
Wind Walk,
Hold Monster (D)
Level 7 (1+D/day):
Radiant Assault,
Dictum(D)