Blackhawk's Tearing
Transmutation [Cursed]
Level: Brd 0, Clr 0, Drd 0, Sor/Wiz 0
Components: V, S
Casting Time: 1 standard action
Range: 10 ft.
Target: One object of up to 1 lb whose possessor (and the object itself, if intelligent) is willing.
Duration: Until discharged
Saving Throw: Will negates (appears harmless, object)
Spell Resistance: Yes (appears harmless, object)

This spell appears to be the spell Mending to all scrutiny - which means that the spell becomes undetectable the moment its casting is complete, though someone might dispel it without noticing it even exists. In reality, it reverses any beneficial effect it had, and also causes 1d6 points of damage to the object in question, when that object is used or attacked.

Storm Rage
Evocation [Mind-Affecting, Cursed]
Level: Brd 2, Sor/Wiz 3
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Targets: One willing living creature per three levels, no two of which may be more than 30 ft. apart
Duration: Concentration + 1 round/level (D)
Saving Throw: None
Spell Resistance: Yes

Storm Rage works much like Rage, and indeed appears to be the same spell for all intents and purposes. However, it deals 1d6/level electricity damage to each raging creature when the rage ends, and the subjects are fatigued as a barbarian at the end of the rage.

Verdant Dream
Illusion (Phantasm) [Cursed, Mind-Affecting]
Level: Brd 5, Sor/Wiz 5
Components: V, S
Casting Time: 1 minute
Range: Unlimited
Target: One living creature touched
Duration: 6 hours
Saving Throw: None
Spell Resistance: Yes

This spell tricks a creature into acting as a messenger for a Dream spell which is not actually being cast, but appears to be regardless of what means are used to investigate. The creature is instead trapped in a green forest, which appears to be part of the dream in question, and delivers their message, unaware that time is being slowed so much that they are actually taking six hours in reality to deliver the message, and that no-one will ever receive it. In this time, the would-be-messenger can be picked up, carried around, and even attacked without ever noticing it.

Urashima's Balanced Strength
Transmutation [Cursed]
Level: Clr 2, Drd 2, Sor/Wiz 2
Components: V, S, M/DF
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 1 min./level
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

This spell appears to be the spell Bull's Strength, until the target takes an action requiring their strength score, at which point the effect is reversed for the rest of the duration.

Arcane Material Component
A few hairs, or a pinch of dung, from a bull. The material component is not strictly necessary, but those in the know might notice its omission.

Will work down the rest of the list eventually.