Adrenaline Surge

Masters of the Wild: A Guidebook to Barbarians, Druids, and Rangers (MW)Supplementals (3.0)
School
Transmutation
Casting Time
1 standard action
Components
V, S, DF
Range
Close (25 ft. + 5 ft./2 levels)
Target
The caster's summoned creatures within range
Duration
1 round/level
Saving Throw
Will negates (harmless)
Spell Resistance
Yes (harmless)

Each of your summoned creatures within the area receives a +4 enhancement bonus to Strength.
This effect lasts until the spell ends or the creature leaves the area.