Thanks to Firstborn Dragon for the information in this list.

Name	Buy	Sell	Found	Description
Antidotal herb	10	5	Item shops on: Infant Isle, Domus Isle, Xeroph Isle, Celeste Isle	Cures single ally of the effects of poison
Antimagic powder	100	50	Domus Isle Department Store, Item shop on: Fert Isle	Enchanted dust used to seal an enemy's magic
Bag of Exodust	50	25	Item shops on: Domus Isle, Xeroph Isle, Palaish Isle	Teleports you out of the current tower, cave, or dungeon.
Baryon Sphere			Cell HQ after the tournament	A mysterious orb recived from Warden Trump.
Brass Key			Recived for winning Solitaire's Challenge	A key recived from Solitaire
Chimera Wing	25	13	Item shops on: Domus Isle, Xeroph Isle	Teleports you to the last scoutpost you visitied. (Only works outside)
Darkonium		3	See Darkonum List	A very stable piece of darkoium
Elfin Elixir	1,260	630	Domus Isle Department Store (After the end of the game), Advanced Monster proficiency Test: Question 1	Fully restores the MP of a single ally
Gold Nugget		5	Advanced Proficiency Test: Question 3	A heavy chunk of soild gold
How to Zoom			Xeroph Isle Temple Boss	A mystic tome that teachest the hero Zoom
Insulade	350	175	Domus Isle Department Store, Item shop on: Celeste Isle	Increases one ally's resistance to fire and ice breath attacks
Jumbo Insulade	1	525	Domus Isle Department Store (After the start of the tournament)	Increases all allies, resistance to fire and ice breath attacks
Loyalty card			S rank reward in battle arena	Allows you to purchase good with a 20% discount at all shops.
Lunar Tablet			Celeste Ise Temple	A tablet engraved with the mark of the moon.
Mage's Scroll		1	Domus Isle Department Store	Teaches Skill: 188 Mage
Magic Elixer	300	150	Domus Isle Department Store, , Item shops on Palaish Isle, Celeste Isle	Resotres 30 MP to a single ally.
Martial artist's scroll		1	Domus Isle Department Store	Teaches Skill: 190 Martial Artist
Medicinal Herb	8	4	Item shops on: Infant Isle, Domus Isle, Xeroph Isle, Palaish Isle, Also found in Domus Isle Department Store	Restores 30 HP to a single ally
Metal Ticket	10		Domus Isle Sewer , (After end credits)	Grants Entrance to the Metal Menagerie
Moonwart Bulb	30	15	Item shops on: Domus Isle, Xeroph Isle, Celeste Isle	Cures single ally of the effects of paralysis
Multi Medicine	600	300	Fert Isle, , Domus Isle department Store (After the start of the tournament.)	Restores 30 HP to all allies
Neutral Ground	14	1	Domus Isle sewer weapon shop	Lures +/- monsters into battle
Oomph powder	900	450	Domus Isle Department Store, Item shop on: Fert Isle	Increases the attack power of a single ally
Pancea	550	275	Domus Isle Department Store, Item shops on: Palaish Isle, Fert Isle	Cures single ally of all physical ailments
Positive Puller	7	730	Domus Isle sewer weapon shop	Lures + monsters into battle
Priest's Scroll		1	Domus Isle Department Store	Teaches Skill: 189 Priest
Sage's Elixir	750	375	Domus Isle department Store, (After the start of the tournament.)	Restores 90MP to a single ally.
Sage's Scroll		1	Domus Isle Department Store	Teaches Skill: 191 Sage
Seed of Agility		13	-	Permanently increases the agility of a single ally
Seed of Defence		15	-	Permanently increases the defence of a single ally
Seed of Life		18	E rank reward in battle arena	Permanently increases the HP of a single ally
Seed of Magic		20	-	Permanently increases the MP of a single ally
Seed of Skill		23	Found at night on most islands	Permanently increases the skill points of a single ally by three
Seed of Strenght		15	-	Permanently increases the attack of a single ally
Seed of Wisdom		10	-	Permanently increases the wisdom of a single ally
Solar Tablet			Celeste Ise Temple	A tablet engraved with the mark of the Sun.
Special Medicine		125	-	Restores 120 HP to a single ally
Strong Medicine	50	25	Domus Isle Department Store, Item shops on: Palaish Isle, Celeste Isle, Fert Isle	Restores 60 HP to a single ally
The Art of Vanishing			Fert Isle Temple Boss	A mystic tome that teaches the hero Vanish.
The Joy of Evac			Palaish Isle Temple Boss	A mystic tome that teachest the hero Evac
Thief's Scroll		1	Domus Isle Department Store	Teaches Skill: 192 Theif
Think Negative	7	750	Domus Isle sewer weapon shop	Lures - monsters into battle
Warrior's Scroll		1	Domus Isle Department Store	Teaches Skill: 187 Warrior
Whisiling for Dummies			Celeste Isle Temple Boss	A mystic tome that teaches the hero Whistle.
Wizard's Penny	310	155	Domus Isle Department Store, Item shop on: Celeste Isle	Increases one ally's reistance to enemy magic.
Wizard's Shilling	960	480	Domus Isle Department Store (After the start of the tournament)	Increases all allies' resitance to enemy magic
Yggdrasil Dew	3	1	Domus Isle Department Store (After the end of the game), Advanced Monster proficiency Test: Question 2	Restores between 100 and 120 HP to all allies.
Yggdrasil Leaf	1	750	Domus Isle sewer weapon shop	A mystical leaf that resurrect a single fallen ally.