Shade
Monster Junkie
I like "grounded". 
Dowsizing the relative bits of a unicorn to Tiny (but not dropping Str below 10) for an alternate form yields...
Initiative: +6
Speed: 60 ft. (12 squares)
Armor Class: 18 (+2 size, +6 Dex), touch 18, flat-footed 12
Base Attack/Grapple: +3/-5
Attack: Horn +5 melee (1d3)
Full Attack: Horn +5 melee (1d3) and 2 hooves +0 melee (1)
Space/Reach: 2-1/2 ft./0 ft.
Special Attacks: —
Saves: Fort +5, Ref +9
Abilities: Str 10, Dex 23, Con 15, Int 10, Wis 21, Cha 24
Does that look right?

Dowsizing the relative bits of a unicorn to Tiny (but not dropping Str below 10) for an alternate form yields...
Initiative: +6
Speed: 60 ft. (12 squares)
Armor Class: 18 (+2 size, +6 Dex), touch 18, flat-footed 12
Base Attack/Grapple: +3/-5
Attack: Horn +5 melee (1d3)
Full Attack: Horn +5 melee (1d3) and 2 hooves +0 melee (1)
Space/Reach: 2-1/2 ft./0 ft.
Special Attacks: —
Saves: Fort +5, Ref +9
Abilities: Str 10, Dex 23, Con 15, Int 10, Wis 21, Cha 24
Does that look right?