I finally got around to registering just to post this. Egotism, eh?
Agathralt's Persuasive Proposition (Suggestion). Dismal Failure: Target divines the caster's true intent towards it, as adjudicated by DM. Illustrious Success: Caster gets +5 on his next Persuade roll against the target.
The Scintillant Scattering (Glitterdust). Dismal Failure: The motes wildly scatter around the caster, who ends up slipping on and swallowing them. The caster is sickened for 1 minute and is prone. Illustrious Success: Creatures in the spell area itch ferociously for the spell's duration, suffering a -2 to attack rolls and skill checks.
Eloquent Exposition of Personal Excellence (Charm Person). Dismal Failure: The target becomes hostile. If the target is an attempted romantic conquest, he/she will mock the caster's undoubted ineptitude. Illustrious Success: The target gets -2 on the save, -4 for an attempted romantic conquest. In the latter case and in the likely event of success, the target will appreciate the caster's prowess regardless of actuality.
Agathralt's Rune of Insistent Inquiry (Symbol of Pain). Dismal Failure: The symbol appears, but instead of working gives its first target a rage-fuelled +10 Strength, then fades. Illustrious Success: The first Intimidate roll made against any target of the rune after its effect gets +10.
Untecilo's Timely Tenebrosity (Darkness). Dismal Failure: Daylight (as the spell) for 1 minute (or a 60-foot radius light effect if there is no access to the spell). Illustrious Success: Total darkness instead for the spell's duration, at the caster's option.
Second Sequence of Salutary Saltation (Otto's Irresistible Dance). Dismal Failure: Spell affects caster. Illustrious Success: Target is exhausted for 1 round/level after the spell's duration.
Kavalter's Acrobatic Aptitude (Jump). Dismal Failure: The first jump made after casting is the opposite forwards/backwards direction than intended, then the spell fails. Illustrious Success: All jumps made while the spell is in effect land in silence, as the spell.
Spell of Simian Sagacity (Touch of Idiocy). Dismal Failure: Target gets +4 Strength for 1 minute. Illustrious Success: Target is dazed for 1 round in addition to the spell's other effects.
Enforced Emulation of the Senescent Sun (Bestow Curse). Dismal Failure: Caster becomes terrified that the sun may go out and must stare at it, as if fascinated, for 1 minute. If he cannot see the sun, he must remedy the situation immediately. Illustrious Success: Target becomes melancholy (fascinated) for 1 round/level.
Tazvei's Abrupt Ascent (Reverse Gravity). Dismal Failure: Caster is strongly attracted to the ground and is rooted motionless for 1 hour. Illustrious Success: Caster is unaffected by the spell and may fly in its area at a speed of 10 feet with perfect maneuverability.

Agathralt's Persuasive Proposition (Suggestion). Dismal Failure: Target divines the caster's true intent towards it, as adjudicated by DM. Illustrious Success: Caster gets +5 on his next Persuade roll against the target.
The Scintillant Scattering (Glitterdust). Dismal Failure: The motes wildly scatter around the caster, who ends up slipping on and swallowing them. The caster is sickened for 1 minute and is prone. Illustrious Success: Creatures in the spell area itch ferociously for the spell's duration, suffering a -2 to attack rolls and skill checks.
Eloquent Exposition of Personal Excellence (Charm Person). Dismal Failure: The target becomes hostile. If the target is an attempted romantic conquest, he/she will mock the caster's undoubted ineptitude. Illustrious Success: The target gets -2 on the save, -4 for an attempted romantic conquest. In the latter case and in the likely event of success, the target will appreciate the caster's prowess regardless of actuality.
Agathralt's Rune of Insistent Inquiry (Symbol of Pain). Dismal Failure: The symbol appears, but instead of working gives its first target a rage-fuelled +10 Strength, then fades. Illustrious Success: The first Intimidate roll made against any target of the rune after its effect gets +10.
Untecilo's Timely Tenebrosity (Darkness). Dismal Failure: Daylight (as the spell) for 1 minute (or a 60-foot radius light effect if there is no access to the spell). Illustrious Success: Total darkness instead for the spell's duration, at the caster's option.
Second Sequence of Salutary Saltation (Otto's Irresistible Dance). Dismal Failure: Spell affects caster. Illustrious Success: Target is exhausted for 1 round/level after the spell's duration.
Kavalter's Acrobatic Aptitude (Jump). Dismal Failure: The first jump made after casting is the opposite forwards/backwards direction than intended, then the spell fails. Illustrious Success: All jumps made while the spell is in effect land in silence, as the spell.
Spell of Simian Sagacity (Touch of Idiocy). Dismal Failure: Target gets +4 Strength for 1 minute. Illustrious Success: Target is dazed for 1 round in addition to the spell's other effects.
Enforced Emulation of the Senescent Sun (Bestow Curse). Dismal Failure: Caster becomes terrified that the sun may go out and must stare at it, as if fascinated, for 1 minute. If he cannot see the sun, he must remedy the situation immediately. Illustrious Success: Target becomes melancholy (fascinated) for 1 round/level.
Tazvei's Abrupt Ascent (Reverse Gravity). Dismal Failure: Caster is strongly attracted to the ground and is rooted motionless for 1 hour. Illustrious Success: Caster is unaffected by the spell and may fly in its area at a speed of 10 feet with perfect maneuverability.